diff --git a/convlab2/policy/dqn/__init__.py b/convlab2/policy/dqn/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..433c9e1b1e4804ec1358ffde462ac597fada420e
--- /dev/null
+++ b/convlab2/policy/dqn/__init__.py
@@ -0,0 +1 @@
+from convlab2.policy.dqn.dqn import DQN
diff --git a/convlab2/policy/dqn/config.json b/convlab2/policy/dqn/config.json
new file mode 100755
index 0000000000000000000000000000000000000000..1c3fd41fa2ee68ae36c68e8e769c298edd53177e
--- /dev/null
+++ b/convlab2/policy/dqn/config.json
@@ -0,0 +1,20 @@
+{
+	"batch_size": 16,
+	"gamma": 0.99,
+	"lr": 0.001,
+	"save_dir": "save",
+	"log_dir": "log",
+	"save_per_epoch": 5,
+	"training_iter": 10,
+	"training_batch_iter": 3,
+	"h_dim": 100,
+	"hv_dim": 50,
+	"memory_size": 5000,
+	"epsilon_spec": {
+		"start": 0.1,
+		"end": 0.0,
+		"end_epoch": 200
+	},
+	"load": "save/best",
+	"vocab_size": 500
+}
diff --git a/convlab2/policy/dqn/dqn.py b/convlab2/policy/dqn/dqn.py
new file mode 100644
index 0000000000000000000000000000000000000000..fed3e04bc8f9ce928c92b3f68cacc3368d1d2da6
--- /dev/null
+++ b/convlab2/policy/dqn/dqn.py
@@ -0,0 +1,159 @@
+# -*- coding: utf-8 -*-
+import torch
+from torch import optim
+from torch import nn
+import numpy as np
+import logging
+import os
+import json
+import copy
+from convlab2.policy.policy import Policy
+from convlab2.policy.rlmodule import EpsilonGreedyPolicy, MemoryReplay
+from convlab2.util.train_util import init_logging_handler
+from convlab2.policy.vector.vector_multiwoz import MultiWozVector
+from convlab2.util.file_util import cached_path
+import zipfile
+import sys
+
+root_dir = os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))))
+sys.path.append(root_dir)
+
+DEVICE = torch.device("cuda" if torch.cuda.is_available() else "cpu")
+
+
+class DQN(Policy):
+
+    def __init__(self, is_train=False, dataset='Multiwoz'):
+
+        with open(os.path.join(os.path.dirname(os.path.abspath(__file__)), 'config.json'), 'r') as f:
+            cfg = json.load(f)
+        self.save_dir = os.path.join(os.path.dirname(os.path.abspath(__file__)), cfg['save_dir'])
+        self.save_per_epoch = cfg['save_per_epoch']
+        self.training_iter = cfg['training_iter']
+        self.training_batch_iter = cfg['training_batch_iter']
+        self.batch_size = cfg['batch_size']
+        self.gamma = cfg['gamma']
+        self.is_train = is_train
+        if is_train:
+            init_logging_handler(os.path.join(os.path.dirname(os.path.abspath(__file__)), cfg['log_dir']))
+
+        # construct multiwoz vector
+        if dataset == 'Multiwoz':
+            voc_file = os.path.join(root_dir, 'data/multiwoz/sys_da_voc.txt')
+            voc_opp_file = os.path.join(root_dir, 'data/multiwoz/usr_da_voc.txt')
+            self.vector = MultiWozVector(voc_file, voc_opp_file, composite_actions=True, vocab_size=cfg['vocab_size'])
+
+        #replay memory
+        self.memory = MemoryReplay(cfg['memory_size'])
+
+        self.net = EpsilonGreedyPolicy(self.vector.state_dim, cfg['hv_dim'], self.vector.da_dim, cfg['epsilon_spec']).to(device=DEVICE)
+        self.target_net = copy.deepcopy(self.net)
+
+        self.online_net = self.target_net
+        self.eval_net = self.target_net
+
+        if is_train:
+            self.net_optim = optim.Adam(self.net.parameters(), lr=cfg['lr'])
+
+        self.loss_fn = nn.MSELoss()
+
+    def update_memory(self, sample):
+        self.memory.append(sample)
+        
+    def predict(self, state):
+        """
+        Predict an system action given state.
+        Args:
+            state (dict): Dialog state. Please refer to util/state.py
+        Returns:
+            action : System act, with the form of (act_type, {slot_name_1: value_1, slot_name_2, value_2, ...})
+        """
+        s_vec = torch.Tensor(self.vector.state_vectorize(state))
+        a = self.net.select_action(s_vec.to(device=DEVICE))
+
+        action = self.vector.action_devectorize(a.numpy())
+
+        state['system_action'] = action
+        return action
+
+    def init_session(self):
+        """
+        Restore after one session
+        """
+        self.memory.reset()
+    
+    def calc_q_loss(self, batch):
+        '''Compute the Q value loss using predicted and target Q values from the appropriate networks'''
+        s = torch.from_numpy(np.stack(batch.state)).to(device=DEVICE)
+        a = torch.from_numpy(np.stack(batch.action)).to(device=DEVICE)
+        r = torch.from_numpy(np.stack(batch.reward)).to(device=DEVICE)
+        next_s = torch.from_numpy(np.stack(batch.next_state)).to(device=DEVICE)
+        mask = torch.Tensor(np.stack(batch.mask)).to(device=DEVICE)
+
+        q_preds = self.net(s)
+        with torch.no_grad():
+            # Use online_net to select actions in next state
+            online_next_q_preds = self.online_net(next_s)
+            # Use eval_net to calculate next_q_preds for actions chosen by online_net
+            next_q_preds = self.eval_net(next_s)
+        act_q_preds = q_preds.gather(-1, a.argmax(-1).long().unsqueeze(-1)).squeeze(-1)
+        online_actions = online_next_q_preds.argmax(dim=-1, keepdim=True)
+        max_next_q_preds = next_q_preds.gather(-1, online_actions).squeeze(-1)
+        max_q_targets = r + self.gamma * mask * max_next_q_preds
+        
+        
+        q_loss = self.loss_fn(act_q_preds, max_q_targets)
+
+        return q_loss
+    
+    def update(self, epoch):
+        total_loss = 0.
+        for i in range(self.training_iter):
+            round_loss = 0.
+            # 1. batch a sample from memory
+            batch = self.memory.get_batch(batch_size=self.batch_size)
+            
+            for _ in range(self.training_batch_iter):
+                # 2. calculate the Q loss
+                loss = self.calc_q_loss(batch)
+
+                # 3. make a optimization step
+                self.net_optim.zero_grad()
+                loss.backward()
+                self.net_optim.step()
+
+                round_loss += loss.item()
+
+            logging.debug('<<dialog policy dqn>> epoch {}, iteration {}, loss {}'.format(epoch, i, round_loss / self.training_batch_iter))
+            total_loss += round_loss
+        total_loss /= (self.training_batch_iter * self.training_iter)
+        logging.debug('<<dialog policy dqn>> epoch {}, total_loss {}'.format(epoch, total_loss))
+
+        # update the epsilon value
+        self.net.update_epsilon(epoch)
+
+        # update the target network
+        self.target_net.load_state_dict(self.net.state_dict())
+        
+        if (epoch+1) % self.save_per_epoch == 0:
+            self.save(self.save_dir, epoch)
+    
+    def save(self, directory, epoch):
+        if not os.path.exists(directory):
+            os.makedirs(directory)
+
+        torch.save(self.net.state_dict(), directory + '/' + str(epoch) + '_dqn.pol.mdl')
+
+        logging.info('<<dialog policy>> epoch {}: saved network to mdl'.format(epoch))
+    
+    def load(self, filename):
+        dqn_mdl_candidates = [
+            filename + '.dqn.mdl',
+            os.path.join(os.path.dirname(os.path.abspath(__file__)), filename + '.dqn.mdl'),
+        ]
+        for dqn_mdl in dqn_mdl_candidates:
+            if os.path.exists(dqn_mdl):
+                self.net.load_state_dict(torch.load(dqn_mdl, map_location=DEVICE))
+                self.target_net.load_state_dict(torch.load(dqn_mdl, map_location=DEVICE))
+                logging.info('<<dialog policy>> loaded checkpoint from file: {}'.format(dqn_mdl))
+                break
diff --git a/convlab2/policy/dqn/train.py b/convlab2/policy/dqn/train.py
new file mode 100755
index 0000000000000000000000000000000000000000..8ebcf280a73e20bc289a8860713fea78c878b312
--- /dev/null
+++ b/convlab2/policy/dqn/train.py
@@ -0,0 +1,175 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Sun Jul 14 16:14:07 2019
+@author: truthless
+"""
+import sys, os
+sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))))
+import numpy as np
+import torch
+import logging
+from torch import multiprocessing as mp
+from convlab2.dialog_agent.agent import PipelineAgent
+from convlab2.dialog_agent.env import Environment
+from convlab2.nlu.svm.multiwoz import SVMNLU
+from convlab2.dst.rule.multiwoz import RuleDST
+from convlab2.policy.rule.multiwoz import RulePolicy
+from convlab2.policy.dqn import DQN
+from convlab2.policy.rlmodule import Memory, Transition
+from convlab2.nlg.template.multiwoz import TemplateNLG
+from convlab2.evaluator.multiwoz_eval import MultiWozEvaluator
+from argparse import ArgumentParser
+
+DEVICE = torch.device("cuda" if torch.cuda.is_available() else "cpu")
+
+try:
+    mp = mp.get_context('spawn')
+except RuntimeError:
+    pass
+
+def sampler(pid, queue, evt, env, policy, batchsz):
+    """
+    This is a sampler function, and it will be called by multiprocess.Process to sample data from environment by multiple
+    processes.
+    :param pid: process id
+    :param queue: multiprocessing.Queue, to collect sampled data
+    :param evt: multiprocessing.Event, to keep the process alive
+    :param env: environment instance
+    :param policy: policy network, to generate action from current policy
+    :param batchsz: total sampled items
+    :return:
+    """
+    buff = Memory()
+
+    # we need to sample batchsz of (state, action, next_state, reward, mask)
+    # each trajectory contains `trajectory_len` num of items, so we only need to sample
+    # `batchsz//trajectory_len` num of trajectory totally
+    # the final sampled number may be larger than batchsz.
+
+    sampled_num = 0
+    sampled_traj_num = 0
+    traj_len = 50
+    real_traj_len = 0
+
+    while sampled_num < batchsz:
+        # for each trajectory, we reset the env and get initial state
+        s = env.reset()
+
+        for t in range(traj_len):
+
+            # [s_dim] => [a_dim]
+            s_vec = torch.Tensor(policy.vector.state_vectorize(s))
+            a = policy.predict(s)
+
+            # interact with env
+            next_s, r, done = env.step(a)
+
+            # a flag indicates ending or not
+            mask = 0 if done else 1
+
+            # get reward compared to demostrations
+            next_s_vec = torch.Tensor(policy.vector.state_vectorize(next_s))
+
+            # save to queue
+            buff.push(s_vec.numpy(), policy.vector.action_vectorize(a), r, next_s_vec.numpy(), mask)
+
+            # update per step
+            s = next_s
+            real_traj_len = t
+
+            if done:
+                break
+
+        # this is end of one trajectory
+        sampled_num += real_traj_len
+        sampled_traj_num += 1
+        # t indicates the valid trajectory length
+
+    # this is end of sampling all batchsz of items.
+    # when sampling is over, push all buff data into queue
+    queue.put([pid, buff])
+    evt.wait()
+
+
+def sample(env, policy, batchsz, process_num):
+    """
+    Given batchsz number of task, the batchsz will be splited equally to each processes
+    and when processes return, it merge all data and return
+	:param env:
+	:param policy:
+    :param batchsz:
+	:param process_num:
+    :return: batch
+    """
+
+    # batchsz will be splitted into each process,
+    # final batchsz maybe larger than batchsz parameters
+    process_batchsz = np.ceil(batchsz / process_num).astype(np.int32)
+    # buffer to save all data
+    queue = mp.Queue()
+
+    # start processes for pid in range(1, processnum)
+    # if processnum = 1, this part will be ignored.
+    # when save tensor in Queue, the process should keep alive till Queue.get(),
+    # please refer to : https://discuss.pytorch.org/t/using-torch-tensor-over-multiprocessing-queue-process-fails/2847
+    # however still some problem on CUDA tensors on multiprocessing queue,
+    # please refer to : https://discuss.pytorch.org/t/cuda-tensors-on-multiprocessing-queue/28626
+    # so just transform tensors into numpy, then put them into queue.
+    evt = mp.Event()
+    processes = []
+    for i in range(process_num):
+        process_args = (i, queue, evt, env, policy, process_batchsz)
+        processes.append(mp.Process(target=sampler, args=process_args))
+    for p in processes:
+        # set the process as daemon, and it will be killed once the main process is stoped.
+        p.daemon = True
+        p.start()
+
+    # we need to get the first Memory object and then merge others Memory use its append function.
+    pid0, buff0 = queue.get()
+    for _ in range(1, process_num):
+        pid, buff_ = queue.get()
+        buff0.append(buff_)  # merge current Memory into buff0
+    evt.set()
+
+    # now buff saves all the sampled data
+    buff = buff0
+
+    return buff
+
+
+def update(env, policy, batchsz, epoch, process_num):
+    # sample data asynchronously
+    buff = sample(env, policy, batchsz, process_num)
+    policy.update_memory(buff)
+
+    policy.update(epoch)
+
+
+if __name__ == '__main__':
+    parser = ArgumentParser()
+    parser.add_argument("--load_path", type=str, default="", help="path of model to load")
+    parser.add_argument("--batchsz", type=int, default=100, help="batch size of trajactory sampling")
+    parser.add_argument("--epoch", type=int, default=200, help="number of epochs to train")
+    parser.add_argument("--process_num", type=int, default=3, help="number of processes of trajactory sampling")
+    args = parser.parse_args()
+
+    # simple rule DST
+    dst_sys = RuleDST()
+
+    policy_sys = DQN(True)
+    policy_sys.load(args.load_path)
+
+    # not use dst
+    dst_usr = None
+    # rule policy
+    policy_usr = RulePolicy(character='usr')
+    # assemble
+    simulator = PipelineAgent(None, None, policy_usr, None, 'user')
+
+    evaluator = MultiWozEvaluator()
+    env = Environment(None, simulator, None, dst_sys, evaluator)
+
+
+    for i in range(args.epoch):
+        update(env, policy_sys, args.batchsz, i, args.process_num)
diff --git a/convlab2/policy/rlmodule.py b/convlab2/policy/rlmodule.py
index d4aba92feb1d412b51a905265ac06804007e1d61..3eebe1e6fec69bb7b1032ba5f5fd212706f3943d 100755
--- a/convlab2/policy/rlmodule.py
+++ b/convlab2/policy/rlmodule.py
@@ -56,7 +56,64 @@ class DiscretePolicy(nn.Module):
 
         return log_prob
  
-    
+class EpsilonGreedyPolicy(nn.Module):
+    def __init__(self, s_dim, h_dim, a_dim, epsilon_spec={'start': 0.1, 'end': 0.0, 'end_epoch': 200}):
+        super(EpsilonGreedyPolicy, self).__init__()
+
+        self.net = nn.Sequential(nn.Linear(s_dim, h_dim),
+                                 nn.ReLU(),
+                                 nn.Linear(h_dim, h_dim),
+                                 nn.ReLU(),
+                                 nn.Linear(h_dim, a_dim))
+
+        self.epsilon = epsilon_spec['start']
+        self.start = epsilon_spec['start']
+        self.end = epsilon_spec['end']
+        self.end_epoch = epsilon_spec['end_epoch']
+        self.a_dim = a_dim
+
+    def forward(self, s):
+        # [b, s_dim] => [b, a_dim]
+        a_weights = self.net(s)
+
+        return a_weights
+
+    def select_action(self, s, is_train=True):
+        """
+        :param s: [s_dim]
+        :return: [1]
+        """
+        # forward to get action probs
+        # [s_dim] => [a_dim]
+
+        if is_train:
+            if self.epsilon > np.random.rand():
+                # select a random action
+                a = torch.randint(self.a_dim, (1, ))
+            else:
+                a = self._greedy_action(s)
+        else:
+            a = self._greedy_action(s)
+
+        # transforms action index to a vector action (one-hot encoding)
+        a_vec = torch.zeros(self.a_dim)
+        a_vec[a] = 1.
+
+        return a_vec
+
+    def update_epsilon(self, epoch):
+        # Linear decay
+        a = -float(self.start - self.end) / self.end_epoch
+        b = float(self.start)
+        self.epsilon = max(self.end, a * float(epoch) + b)
+
+    def _greedy_action(self, s):
+        """
+        Select a greedy action
+        """
+        a_weights = self.forward(s)
+        return a_weights.argmax(0, True)
+
 class MultiDiscretePolicy(nn.Module):
     def __init__(self, s_dim, h_dim, a_dim):
         super(MultiDiscretePolicy, self).__init__()
@@ -224,3 +281,42 @@ class Memory(object):
 
     def __len__(self):
         return len(self.memory)
+
+class MemoryReplay(object):
+    """
+        The difference to class Memory is that MemoryReplay has a limited size.
+        It is mainly used for off-policy algorithms.
+    """
+    def __init__(self, max_size):
+        self.memory = []
+        self.index = 0
+        self.max_size = max_size
+
+    def push(self, *args):
+        """Saves a transition."""
+        if len(self.memory) < self.max_size:
+            self.memory.append(None)
+        self.memory[self.index] = Transition(*args)
+        self.index = (self.index + 1) % self.max_size
+        
+
+    def get_batch(self, batch_size=None):
+        if batch_size is None:
+            return Transition(*zip(*self.memory))
+        else:
+            random_batch = random.sample(self.memory, batch_size)
+            return Transition(*zip(*random_batch))
+
+    def append(self, new_memory):
+        for transition in new_memory.memory:
+            if len(self.memory) < self.max_size:
+                self.memory.append(None)
+            self.memory[self.index] = transition
+            self.index = (self.index + 1) % self.max_size
+
+    def reset(self):
+        self.memory = []
+        self.index = 0
+
+    def __len__(self):
+        return len(self.memory)        
diff --git a/convlab2/policy/vector/vector_multiwoz.py b/convlab2/policy/vector/vector_multiwoz.py
index 24673380540fa62b95d75b86133f4eb34849a804..64841ef5e7a1fd54a5f60b3cce11c646475b8e51 100755
--- a/convlab2/policy/vector/vector_multiwoz.py
+++ b/convlab2/policy/vector/vector_multiwoz.py
@@ -20,16 +20,22 @@ mapping = {'restaurant': {'addr': 'address', 'area': 'area', 'food': 'food', 'na
            'hospital': {'post': 'postcode', 'phone': 'phone', 'addr': 'address', 'department': 'department'},
            'police': {'post': 'postcode', 'phone': 'phone', 'addr': 'address'}}
 
+DEFAULT_INTENT_FILEPATH = os.path.join(
+                            os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))),
+                            'data/multiwoz/trackable_intent.json'
+                        )
 
 class MultiWozVector(Vector):
 
     def __init__(self, voc_file, voc_opp_file, character='sys',
-                 intent_file=os.path.join(
-                     os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))),
-                     'data/multiwoz/trackable_intent.json')):
+                 intent_file=DEFAULT_INTENT_FILEPATH,
+                 composite_actions=False,
+                 vocab_size=500):
 
         self.belief_domains = ['Attraction', 'Restaurant', 'Train', 'Hotel', 'Taxi', 'Hospital', 'Police']
         self.db_domains = ['Attraction', 'Restaurant', 'Train', 'Hotel']
+        self.composite_actions = composite_actions
+        self.vocab_size = vocab_size
 
         with open(intent_file) as f:
             intents = json.load(f)
@@ -41,10 +47,31 @@ class MultiWozVector(Vector):
             self.da_voc = f.read().splitlines()
         with open(voc_opp_file) as f:
             self.da_voc_opp = f.read().splitlines()
+
+        if self.composite_actions:
+            self.load_composite_actions()
         self.character = character
         self.generate_dict()
         self.cur_domain = None
 
+
+    def load_composite_actions(self):
+        """
+        load the composite actions to self.da_voc
+        """
+        composite_actions_filepath = os.path.join(
+                    os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))),
+                    'data/multiwoz/da_slot_cnt.json')
+        with open(composite_actions_filepath, 'r') as f:
+            composite_actions_stats = json.load(f)
+            for action in composite_actions_stats:
+                if len(action.split(';')) > 1:
+                    # append only composite actions as single actions are already in self.da_voc
+                    self.da_voc.append(action)
+
+                if len(self.da_voc) == self.vocab_size:
+                    break
+
     def generate_dict(self):
         """
         init the dict for mapping state/action into vector
@@ -195,9 +222,14 @@ class MultiWozVector(Vector):
                 Dialog act
         """
         act_array = []
-        for i, idx in enumerate(action_vec):
-            if idx == 1:
-                act_array.append(self.vec2act[i])
+
+        if self.composite_actions:
+            act_idx = np.argmax(action_vec)
+            act_array = self.vec2act[act_idx].split(';')
+        else:
+            for i, idx in enumerate(action_vec):
+                if idx == 1:
+                    act_array.append(self.vec2act[i])
         action = deflat_da(act_array)
         entities = {}
         for domint in action:
@@ -213,7 +245,15 @@ class MultiWozVector(Vector):
         action = delexicalize_da(action, self.requestable)
         action = flat_da(action)
         act_vec = np.zeros(self.da_dim)
-        for da in action:
-            if da in self.act2vec:
-                act_vec[self.act2vec[da]] = 1.
+
+        if self.composite_actions:
+            composite_action = ';'.join(action)
+            for act in self.act2vec:
+                if set(action) == set(act.split(';')):
+                    act_vec[self.act2vec[act]] = 1.
+                    break
+        else:
+            for da in action:
+                if da in self.act2vec:
+                    act_vec[self.act2vec[da]] = 1.
         return act_vec
diff --git a/data/multiwoz/da_slot_cnt.json b/data/multiwoz/da_slot_cnt.json
new file mode 100644
index 0000000000000000000000000000000000000000..bf6355a75e39521c9b20cb8278b4fc946857db9e
--- /dev/null
+++ b/data/multiwoz/da_slot_cnt.json
@@ -0,0 +1,14633 @@
+{
+  "general-bye-none-none": 5388,
+  "general-bye-none-none;general-welcome-none-none": 3300,
+  "general-reqmore-none-none;Booking-Book-Ref-1": 1653,
+  "general-reqmore-none-none": 1632,
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+  "Booking-Inform-none-none;Restaurant-Inform-Phone-1;Restaurant-Inform-Name-1;Restaurant-Inform-Addr-1;Restaurant-Inform-Area-1;Restaurant-Inform-Post-1": 1,
+  "Hotel-Inform-Price-1;Hotel-Inform-Name-1;Hotel-Inform-Name-1;Hotel-Inform-Name-1;Hotel-Inform-Name-1": 1,
+  "Booking-Inform-none-none;Hotel-Inform-Phone-1;Hotel-Inform-Internet-1": 1,
+  "Hotel-Inform-Type-1;Hotel-Inform-Type-1;Hotel-Inform-Choice-1;Hotel-Inform-Price-1;general-reqmore-none-none": 1,
+  "Hotel-Inform-Phone-1;Hotel-Inform-Area-1;Hotel-Inform-Addr-1;Hotel-Inform-Name-1;general-reqmore-none-none": 1,
+  "Attraction-Select-none-none;Attraction-Inform-Name-1;Attraction-Inform-Type-1;Attraction-Inform-Type-1;Attraction-Inform-Choice-1": 1,
+  "general-reqmore-none-none;Attraction-Inform-Addr-1;Attraction-Inform-Addr-1;Attraction-Inform-Addr-1;Attraction-Inform-Phone-1;Attraction-Inform-Post-1": 1,
+  "Train-Inform-Day-1;Train-Inform-Choice-1;Train-Inform-Leave-1;Train-Inform-Leave-1;Train-Inform-Leave-1;Train-Inform-Leave-1;Train-Request-Leave-?": 1,
+  "Restaurant-Inform-Addr-1;Restaurant-Inform-Food-1;Restaurant-Inform-Phone-1": 1,
+  "Restaurant-Select-Name-1;Restaurant-Select-Name-1;Restaurant-Select-Choice-1": 1,
+  "Hotel-Request-Parking-?;Hotel-Inform-Type-1;Hotel-Inform-Internet-1;Hotel-Inform-Choice-1;Hotel-Inform-Area-1": 1,
+  "Hotel-Request-Area-?;Hotel-Inform-Type-1;Hotel-Inform-Choice-1;general-reqmore-none-none": 1,
+  "Hotel-Select-none-none;Hotel-Inform-Parking-1;Hotel-Inform-Name-1;Hotel-Inform-Internet-1;Hotel-Inform-Price-1;Hotel-Inform-Stars-1;Hotel-Inform-Area-1": 1,
+  "Hotel-Inform-Addr-1;Hotel-Inform-Area-1;Hotel-Inform-Internet-1;Hotel-Inform-Name-1;Hotel-Inform-Phone-1;Hotel-Inform-Stars-1": 1,
+  "Hotel-Inform-Phone-1;Hotel-Inform-Internet-1;Hotel-Inform-Parking-1;Hotel-Inform-Area-1;Hotel-Inform-Name-1": 1,
+  "Restaurant-Inform-Food-1;Restaurant-Inform-Addr-1": 1,
+  "Hotel-Inform-Area-1;Hotel-Inform-Area-1;Hotel-Inform-Stars-1;Hotel-Inform-Price-1;Hotel-Inform-Price-1;Hotel-Inform-Name-1;Hotel-Inform-Name-1;Hotel-Inform-Type-1;Hotel-Inform-Internet-1": 1,
+  "Train-Inform-Leave-1;Train-Inform-Arrive-1;Train-Inform-Arrive-1;Train-Inform-Id-1;Train-Inform-Choice-1;Train-Inform-Dest-1": 1,
+  "Booking-Inform-none-none;Restaurant-Inform-Choice-1;Restaurant-Inform-Price-1;Restaurant-Inform-Addr-1;Restaurant-Inform-Name-1": 1,
+  "general-reqmore-none-none;Attraction-Inform-Area-1;Attraction-Inform-Area-1;Attraction-Inform-Area-1;Attraction-Inform-Choice-1": 1,
+  "Attraction-Inform-Area-1;Attraction-Inform-Name-1;Attraction-Inform-Addr-1;Attraction-Inform-Addr-1;Attraction-Inform-Addr-1": 1,
+  "Restaurant-Inform-Price-1;Restaurant-Inform-Price-1;Restaurant-Inform-Name-1;Restaurant-Inform-Name-1": 1,
+  "Booking-Inform-none-none;Hotel-Select-none-none;Hotel-Inform-Name-1;Hotel-Inform-Name-1;Hotel-Inform-Type-1;Hotel-Inform-Stars-1;Hotel-Inform-Stars-1": 1,
+  "Restaurant-Recommend-Addr-1;Restaurant-Recommend-Addr-1;Restaurant-Recommend-Name-1;Restaurant-Inform-Choice-1;Restaurant-Inform-Area-1": 1,
+  "general-reqmore-none-none;Attraction-Inform-Type-1;Attraction-Inform-Choice-1;Attraction-Inform-Area-1;Attraction-Inform-Area-1;Attraction-Inform-Area-1": 1,
+  "Attraction-Inform-Addr-1;Attraction-Inform-Addr-1;Attraction-Inform-Phone-1;Attraction-Inform-Name-1": 1,
+  "Hotel-Inform-Area-1;Hotel-Inform-Name-1;Hotel-Inform-Internet-1;Hotel-Inform-Stars-1": 1,
+  "Hotel-Select-none-none;Hotel-Inform-Price-1;Hotel-Inform-Price-1;Hotel-Inform-Choice-1;Hotel-Inform-Type-1;Hotel-Inform-Area-1": 1,
+  "Booking-Inform-none-none;Hotel-Inform-Post-1;Hotel-Inform-Phone-1;Hotel-Inform-Price-1;Hotel-Inform-Name-1": 1,
+  "Attraction-Select-none-none;Attraction-Inform-Fee-1;Attraction-Inform-Fee-1;Attraction-Inform-Name-1;Attraction-Inform-Name-1": 1,
+  "Train-Inform-Leave-1;Train-Inform-Leave-1;general-greet-none-none": 1,
+  "general-greet-none-none;general-reqmore-none-none;Train-OfferBooked-Ticket-1": 1,
+  "Train-Inform-Ref-1;Attraction-Recommend-Name-1;Attraction-Inform-Area-1;Attraction-Inform-Choice-1": 1,
+  "Taxi-Inform-Depart-1;Taxi-Inform-Car-1;Taxi-Inform-Phone-1": 1,
+  "Restaurant-Recommend-none-none;Restaurant-Inform-Food-1;Restaurant-Inform-Price-1;Restaurant-Inform-Area-1": 1,
+  "general-reqmore-none-none;Attraction-Inform-Type-1;Attraction-Inform-Area-1;Attraction-Inform-Addr-1;Attraction-Inform-Name-1": 1,
+  "Attraction-Recommend-Name-1;Attraction-Recommend-Fee-1;Attraction-Recommend-Addr-1;Attraction-Recommend-Addr-1;Attraction-Recommend-Addr-1;Attraction-Inform-Choice-1": 1,
+  "Booking-Request-Day-?;Booking-Request-Time-?;Restaurant-Inform-Name-1;Restaurant-Inform-Area-1": 1,
+  "Attraction-Inform-Addr-1;Attraction-Inform-Post-1;Attraction-Inform-Name-1;Attraction-Inform-Phone-1": 1,
+  "Hotel-Request-Stars-?;Hotel-Request-Area-?;Hotel-Request-Price-?;Hotel-Request-Internet-?;Hotel-Inform-Choice-1;Hotel-Inform-Type-1": 1,
+  "Attraction-Request-Price-?;Attraction-Request-Type-?;Attraction-Inform-Area-1;Attraction-Inform-Type-1;Attraction-Inform-Choice-1": 1,
+  "general-reqmore-none-none;Attraction-Inform-Name-1;Attraction-Inform-Post-1;Attraction-Inform-Phone-1;Attraction-Inform-Addr-1;Attraction-Inform-Addr-1": 1,
+  "Train-Inform-Choice-1;Train-Inform-Arrive-1;Train-Inform-Leave-1;Train-Request-Leave-?": 1,
+  "general-reqmore-none-none;Attraction-Inform-Area-1;Attraction-Inform-Phone-1;Attraction-Inform-Fee-1;Attraction-Inform-Name-1": 1,
+  "Restaurant-Inform-Name-1;Restaurant-Inform-Post-1;Restaurant-Inform-Area-1": 1,
+  "Booking-Request-People-?;Booking-Request-Time-?;Booking-Request-Day-?;Restaurant-Inform-Food-1;Restaurant-Inform-Price-1;Restaurant-Inform-Area-1": 1,
+  "Taxi-Inform-Dest-1;Taxi-Inform-Car-1;Taxi-Inform-Depart-1;Taxi-Inform-Leave-1;Taxi-Inform-Phone-1;general-reqmore-none-none": 1,
+  "Attraction-Recommend-Name-1;Attraction-Inform-Addr-1;Attraction-Inform-Addr-1": 1,
+  "Attraction-Inform-Choice-1;Attraction-Inform-Name-1;Attraction-Inform-Name-1;Attraction-Inform-Name-1;Attraction-Inform-Name-1;Attraction-Inform-Type-1": 1,
+  "Train-Inform-Depart-1;Train-Inform-Day-1;Train-Inform-Dest-1;Train-Inform-Leave-1;Train-OfferBook-none-none": 1,
+  "Train-Inform-Arrive-1;Train-Inform-Leave-1;Train-Inform-Dest-1;Train-Select-Id-1": 1,
+  "Train-Inform-Depart-1;Train-OfferBooked-Ref-1": 1,
+  "Train-Inform-Ref-1;Train-Inform-Id-1": 1,
+  "Restaurant-Request-Price-?;Restaurant-Inform-Price-1;Restaurant-Inform-Price-1;Restaurant-Inform-Area-1;Restaurant-Inform-Food-1;Restaurant-Inform-Choice-1;Restaurant-Inform-Choice-1;Restaurant-Inform-Choice-1": 1,
+  "Booking-Request-People-?;Booking-Request-Time-?;Restaurant-Inform-Choice-1": 1,
+  "Hotel-Request-Area-?;Hotel-Request-Parking-?;Hotel-Request-Price-?;Hotel-Request-Internet-?;Hotel-Inform-Choice-1": 1,
+  "Booking-Inform-none-none;Hotel-Inform-Price-1;Hotel-Inform-Price-1;Hotel-Inform-Name-1;Hotel-Inform-Name-1;Hotel-Inform-Choice-1;Hotel-Inform-Post-1;Hotel-Inform-Post-1;Hotel-Inform-Addr-1;Hotel-Inform-Addr-1": 1,
+  "Train-Select-Day-1;Train-Request-Leave-?;Train-Request-Depart-?": 1,
+  "Attraction-Request-Price-?;Attraction-Inform-Type-1;Attraction-Inform-Type-1;Attraction-Inform-Choice-1": 1,
+  "Attraction-Inform-Phone-1;Attraction-Inform-Post-1;Attraction-Inform-Name-1;Attraction-Inform-Addr-1;Attraction-Inform-Addr-1": 1,
+  "Restaurant-Inform-Food-1;Restaurant-Inform-Area-1;Restaurant-Inform-Choice-1;Restaurant-Inform-Price-1;Restaurant-Inform-Name-1;Restaurant-Inform-Name-1;Restaurant-Inform-Name-1": 1,
+  "Booking-Request-People-?;Restaurant-Inform-Post-1;Restaurant-Inform-Addr-1": 1,
+  "Train-Inform-Choice-1;Train-Inform-Choice-1;Train-Inform-Leave-1;Train-Request-Dest-?;Train-Request-Day-?": 1,
+  "Restaurant-Inform-Name-1;Restaurant-Inform-Name-1;Restaurant-Inform-Area-1;Restaurant-Inform-Food-1;Restaurant-Inform-Choice-1;Restaurant-Inform-Price-1": 1,
+  "Restaurant-Recommend-Name-1;Booking-Request-Day-?;Booking-Request-Time-?;Booking-Request-People-?": 1,
+  "Attraction-Inform-Name-1;Attraction-Inform-Post-1;Attraction-Inform-Type-1;Attraction-Inform-Addr-1;Attraction-Inform-Area-1": 1,
+  "Train-Select-Day-1;Train-Select-Day-1;Train-Request-Depart-?": 1,
+  "Hotel-Inform-Stars-1;Hotel-Inform-Parking-1;Hotel-Inform-Price-1;Hotel-Inform-Name-1;Hotel-Inform-Type-1": 1,
+  "Restaurant-Inform-Choice-1;Restaurant-Inform-Name-1;Restaurant-Inform-Name-1;Restaurant-Inform-Name-1;Restaurant-Inform-Food-1": 1,
+  "Train-Inform-Choice-1;Train-Inform-Depart-1;Train-Request-Leave-?;Train-Request-Dest-?": 1,
+  "Train-Inform-Ticket-1;Train-Inform-Id-1;Train-Inform-Dest-1;Train-Inform-Leave-1;Train-Inform-Day-1;Train-Inform-Depart-1;Train-OfferBook-none-none": 1,
+  "general-reqmore-none-none;Train-OfferBooked-Id-1;Train-OfferBooked-Ref-1;Train-OfferBooked-People-1;Train-OfferBooked-Arrive-1": 1,
+  "Train-Inform-Ticket-1;Train-Inform-Id-1;Train-Inform-Leave-1;Train-OfferBook-none-none;Train-Request-People-?": 1,
+  "Attraction-Recommend-Type-1;Attraction-Recommend-Choice-1": 1,
+  "Attraction-Inform-Area-1;Attraction-Inform-Type-1;Attraction-Inform-Choice-1;Attraction-Inform-Name-1;Attraction-Inform-Name-1;Train-OfferBooked-Ref-1": 1,
+  "Restaurant-Select-none-none;Restaurant-Inform-Name-1;Restaurant-Inform-Area-1;Restaurant-Inform-Area-1;Restaurant-Inform-Choice-1": 1,
+  "Restaurant-Request-Area-?;Restaurant-Inform-Area-1;Restaurant-Inform-Food-1;Restaurant-Inform-Choice-1": 1,
+  "Hotel-Request-Price-?;Hotel-Inform-Internet-1;Hotel-Inform-Choice-1;Hotel-Inform-Type-1;Hotel-Inform-Type-1": 1,
+  "Hotel-Request-Area-?;Hotel-Select-Area-1;Hotel-Select-Area-1;Hotel-Select-Area-1": 1,
+  "Booking-NoBook-Stay-1;Hotel-Inform-Stars-1;Hotel-Inform-Name-1;Hotel-Inform-Internet-1;Hotel-Inform-Price-1;Booking-Request-Stay-?": 1,
+  "Hotel-Request-Stars-?;Hotel-Request-Area-?;Hotel-Request-Parking-?;Hotel-Request-Price-?;Hotel-Request-Type-?;Hotel-Request-Internet-?;Hotel-Inform-Choice-1": 1,
+  "Hotel-Inform-Parking-1;Hotel-Inform-Internet-1;general-reqmore-none-none": 1,
+  "Restaurant-Select-none-none;Restaurant-Inform-Area-1;Restaurant-Inform-Food-1;Restaurant-Inform-Choice-1;Restaurant-Inform-Choice-1;Restaurant-Inform-Price-1;Restaurant-Inform-Price-1": 1,
+  "Restaurant-Select-Price-1;Restaurant-Select-Choice-1;Restaurant-Inform-Price-1;Restaurant-Inform-Name-1": 1,
+  "Hotel-Inform-Name-1;Hotel-Inform-Type-1;Hotel-Inform-Area-1;Hotel-Inform-Stars-1;Hotel-Inform-Addr-1;Hotel-Inform-Addr-1": 1,
+  "Train-Inform-Choice-1;Train-Inform-Depart-1;Train-Inform-Day-1;Train-Inform-Dest-1;Train-Inform-Leave-1;Train-Request-Leave-?": 1,
+  "Booking-Inform-none-none;Restaurant-Inform-Area-1;Restaurant-Inform-Food-1;Restaurant-Inform-Name-1;Restaurant-Inform-Name-1;Restaurant-Inform-Price-1": 1,
+  "Restaurant-Select-none-none;Restaurant-Inform-Food-1;Restaurant-Inform-Food-1;Restaurant-Inform-Food-1;Restaurant-Inform-Food-1;Restaurant-Inform-Food-1;Restaurant-Inform-Food-1;Restaurant-Inform-Food-1": 1,
+  "Hotel-Recommend-Name-1;Hotel-Inform-Choice-1;Hotel-Inform-Choice-1;Hotel-Inform-Price-1": 1,
+  "Train-Inform-Ticket-1;Train-Inform-Choice-1;Train-OfferBook-none-none": 1,
+  "Train-Inform-Choice-1;Train-Inform-Leave-1;Train-Inform-Ticket-1;Train-OfferBook-none-none": 1,
+  "Train-Inform-Arrive-1;Train-Inform-Leave-1;Train-Inform-Depart-1;Train-Inform-Ticket-1;Train-Inform-Dest-1;Train-OfferBook-none-none;Train-Request-People-?": 1,
+  "general-reqmore-none-none;Attraction-Inform-Name-1;Attraction-Inform-Fee-1;Attraction-Inform-Choice-1;Attraction-Inform-Type-1;Attraction-Inform-Addr-1": 1,
+  "Restaurant-Inform-Price-1;Restaurant-Inform-Post-1;Restaurant-Inform-Name-1": 1,
+  "Hotel-Recommend-Name-1;Hotel-Inform-Type-1": 1,
+  "Booking-Inform-none-none;Restaurant-Recommend-Name-1;Restaurant-Inform-Addr-1;Restaurant-Inform-Food-1": 1,
+  "Taxi-Request-Dest-?;general-reqmore-none-none": 1,
+  "general-bye-none-none;Booking-Book-Ref-1": 1,
+  "Attraction-Recommend-Area-1;Attraction-Recommend-Fee-1;Attraction-Recommend-Post-1;Attraction-Recommend-Addr-1;Attraction-Recommend-Name-1": 1,
+  "general-reqmore-none-none;Restaurant-Inform-Price-1;Restaurant-Inform-Choice-1;Restaurant-Inform-Choice-1;Restaurant-Inform-Area-1": 1,
+  "Booking-Inform-none-none;Restaurant-NoOffer-Food-1;Restaurant-NoOffer-Price-1;Restaurant-NoOffer-Area-1;Restaurant-Inform-Price-1": 1,
+  "Hotel-Inform-Area-1;Hotel-Inform-Addr-1;Hotel-Inform-Type-1": 1,
+  "Train-Inform-Dest-1;Train-Inform-Arrive-1;Train-Inform-Leave-1;Train-Inform-Depart-1": 1,
+  "Restaurant-Inform-Price-1;Restaurant-Inform-Addr-1;Restaurant-Inform-Name-1;Restaurant-Inform-Area-1;Restaurant-Inform-Food-1;Restaurant-Inform-Phone-1;Restaurant-Inform-Post-1": 1,
+  "Train-Inform-Id-1;Train-Inform-Time-1;Train-Inform-Ticket-1;Train-Inform-Leave-1;Train-OfferBook-none-none": 1,
+  "Booking-Book-Name-1;Booking-Book-Ref-1;general-reqmore-none-none;Restaurant-Inform-Food-1": 1,
+  "Attraction-Inform-Type-1;Attraction-Inform-Type-1;Attraction-Inform-Type-1;Attraction-Inform-Fee-1;Attraction-Inform-Choice-1": 1,
+  "Hotel-Inform-Price-1;Hotel-Inform-Type-1;Hotel-Inform-Stars-1;general-reqmore-none-none": 1,
+  "Hotel-Select-none-none;Hotel-Inform-Choice-1;Hotel-Inform-Choice-1;Hotel-Inform-Choice-1;Hotel-Inform-Type-1;Hotel-Inform-Stars-1;Hotel-Inform-Stars-1": 1,
+  "Booking-Inform-none-none;Hotel-Inform-Stars-1;Hotel-Inform-Price-1;Hotel-Inform-Name-1;Hotel-Inform-Type-1": 1,
+  "Train-Inform-Ticket-1;Train-Inform-Leave-1;Train-Inform-Arrive-1;general-reqmore-none-none": 1,
+  "Booking-Inform-none-none;Restaurant-Inform-Price-1;Restaurant-Inform-Food-1;Restaurant-Inform-Area-1": 1,
+  "Train-Inform-Choice-1;Train-Inform-Dest-1;Train-Request-Day-?;Train-Request-Leave-?;Train-Request-Arrive-?;Train-Request-Depart-?": 1,
+  "Train-OfferBooked-Ref-1;Train-OfferBooked-Time-1": 1,
+  "Train-Inform-Depart-1;Train-Inform-Day-1;Train-Inform-Dest-1;Train-Request-Depart-?": 1,
+  "Train-Inform-Ticket-1;Train-Inform-Dest-1;Train-Inform-Depart-1": 1,
+  "general-welcome-none-none;Restaurant-NoOffer-Food-1;Restaurant-NoOffer-Price-1": 1,
+  "Attraction-Inform-Area-1;Attraction-Inform-Name-1;Attraction-Inform-Type-1;Attraction-Inform-Choice-1;Attraction-Inform-Choice-1": 1,
+  "Restaurant-Inform-Choice-1;Restaurant-Inform-Food-1;Booking-Book-Ref-1": 1,
+  "Hotel-Request-Price-?;Hotel-NoOffer-Price-1;Hotel-Inform-Price-1;Hotel-Inform-Choice-1;Hotel-Inform-Type-1": 1,
+  "Hotel-Inform-Choice-1;Hotel-Inform-Name-1;Hotel-Inform-Price-1;Hotel-Inform-Area-1": 1,
+  "Hotel-Recommend-Name-1;Hotel-Inform-Choice-1;Hotel-Inform-Choice-1": 1,
+  "Hotel-Inform-Type-1;Hotel-Inform-Stars-1;Hotel-Inform-Name-1;Hotel-Inform-Name-1;Hotel-Inform-Area-1": 1,
+  "Hotel-Select-Choice-1;Hotel-Inform-Internet-1;Hotel-Inform-Parking-1": 1,
+  "Attraction-Inform-Addr-1;Attraction-Inform-Addr-1;Attraction-Inform-Addr-1;Attraction-Inform-Area-1;Attraction-Inform-Name-1;Attraction-Inform-Phone-1": 1,
+  "Attraction-Inform-Fee-1;Attraction-Inform-Post-1;Attraction-Inform-Name-1": 1,
+  "Hotel-NoOffer-Type-1;Hotel-Inform-Choice-1;Hotel-Inform-Stars-1": 1,
+  "Hotel-Inform-Area-1;Hotel-Inform-Area-1;Hotel-Inform-Area-1;Hotel-Inform-Choice-1;Hotel-Inform-Internet-1;Hotel-Inform-Parking-1": 1,
+  "Restaurant-Select-Price-1;Restaurant-Select-Price-1;general-greet-none-none;Restaurant-Inform-Food-1;Restaurant-Inform-Choice-1;Restaurant-Inform-Area-1": 1,
+  "Restaurant-Select-Name-1;Restaurant-Select-Name-1;Restaurant-Select-Name-1;Booking-Inform-none-none": 1,
+  "Booking-Inform-none-none;Hotel-Inform-Post-1;Booking-Request-Stay-?;Booking-Request-People-?": 1,
+  "Restaurant-Inform-Name-1;Restaurant-Inform-Name-1;Restaurant-Inform-Name-1;Restaurant-Inform-Name-1;Restaurant-Inform-Area-1;Restaurant-Inform-Food-1;Restaurant-Inform-Choice-1": 1,
+  "Hotel-Request-Type-?;Hotel-Request-Stars-?;Hotel-Request-Price-?;Hotel-Request-Area-?;Hotel-Request-Parking-?;Hotel-Request-Internet-?": 1,
+  "Hotel-NoOffer-Area-1;Hotel-Inform-Price-1;Hotel-Inform-Area-1;Hotel-Inform-Stars-1;Hotel-Inform-Name-1": 1,
+  "general-greet-none-none;general-reqmore-none-none;Restaurant-Inform-Choice-1;Restaurant-Inform-Food-1;Restaurant-Inform-Price-1": 1,
+  "Attraction-Recommend-Name-1;Attraction-Inform-Fee-1;Attraction-Inform-Area-1;Attraction-Inform-Type-1;Attraction-Inform-Choice-1": 1,
+  "general-reqmore-none-none;Attraction-Inform-Area-1;Attraction-Inform-Name-1;Attraction-Inform-Type-1;Attraction-Inform-Addr-1;Attraction-Inform-Phone-1": 1,
+  "Hotel-Request-Stars-?;Hotel-Request-Area-?;Hotel-Request-Price-?;Hotel-Request-Type-?;Hotel-Inform-Internet-1;Hotel-Inform-Choice-1;Hotel-Inform-Parking-1": 1,
+  "Hotel-Request-Area-?;Hotel-Request-Internet-?;Hotel-Request-Stars-?;Hotel-Request-Parking-?;Hotel-Inform-Choice-1;Hotel-Inform-Type-1": 1,
+  "Hotel-Recommend-Name-1;Hotel-Recommend-Phone-1;Hotel-Recommend-Stars-1": 1,
+  "Attraction-Inform-Type-1;Attraction-Inform-Addr-1;Attraction-Inform-Phone-1;Attraction-Inform-Area-1": 1,
+  "Attraction-Inform-Phone-1;Attraction-Inform-Addr-1;Attraction-Inform-Addr-1;Attraction-Inform-Addr-1;Attraction-Inform-Area-1;Attraction-Inform-Name-1;Attraction-Inform-Type-1;Attraction-Inform-Post-1": 1,
+  "Train-Inform-Choice-1;Train-Inform-Choice-1;Train-Inform-Dest-1;Train-Inform-Day-1;Train-Inform-Arrive-1;Train-Inform-Leave-1;Train-Request-Day-?": 1,
+  "Train-Inform-Ticket-1;Train-Inform-Id-1;general-greet-none-none": 1,
+  "Attraction-Recommend-Addr-1;Attraction-Recommend-Name-1;general-reqmore-none-none;Attraction-Inform-Fee-1": 1
+}
\ No newline at end of file
diff --git a/data/multiwoz/extract_all_act.py b/data/multiwoz/extract_all_act.py
new file mode 100644
index 0000000000000000000000000000000000000000..c3c5a0fb07ac40fe0b1e837921ee4cd56594e121
--- /dev/null
+++ b/data/multiwoz/extract_all_act.py
@@ -0,0 +1,33 @@
+import json
+import zipfile
+from collections import Counter, OrderedDict
+
+def read_zipped_json(filepath, filename):
+    archive = zipfile.ZipFile(filepath, 'r')
+    return json.load(archive.open(filename))
+
+def extract_act(data, counter):
+    for dialogs in list(data.values()):
+        for turn, meta in enumerate(dialogs['log']):
+            if turn % 2 == 0:
+                # usr turn
+                continue
+            action = ''
+            if meta['dialog_act']:
+                for act, slots in meta['dialog_act'].items():
+                    for slot in slots:
+                        action += f'{act}-'
+                        if slot[1] == '?' or slot[0] == 'none':
+                            action += f'{slot[0]}-{slot[1]};'
+                        else:
+                            action += f'{slot[0]}-1;'
+                counter.update([action[:-1]])
+
+if __name__ == '__main__':
+    counter = Counter()
+    for s in ['train', 'val', 'test']:
+        data = read_zipped_json(s + '.json.zip', s + '.json')
+        extract_act(data, counter)
+
+    with open('da_slot_cnt.json', 'w') as f:
+        json.dump(OrderedDict(counter.most_common()), f, indent=2)