user_turns: <SILENCE> <SILENCE> cheap yes <SILENCE> east <SILENCE> east phone number <SILENCE> what type of food do they serve <SILENCE> thank you good bye <SILENCE> thank you good bye
system_turns: Hello , welcome to the Cambridge restaurant system . You can ask for restaurants by area , price range or food type . How may I help you ? What part of town do you have in mind? Let me confirm , You are looking for a restaurant in the cheap price range right? api_call R_cuisine R_location cheap zizzi_cambridge is in the cheap price range api_call R_cuisine east cheap zizzi_cambridge is a great restaurant the_missing_sock is a nice place in the east of town and the prices are cheap The phone number of the_missing_sock is the_missing_sock_phone Sorry but there is no other restaurant in the cheap price range and the east of town the_missing_sock serves international food Sorry but there is no other restaurant in the cheap price range and the east of town the_missing_sock is a nice place in the east of town and the prices are cheap Sorry but there is no other restaurant in the cheap price range and the east of town  you are welcome