user_turns: <SILENCE> <SILENCE> <SILENCE> i would like a cheap restaurant in the north part of town a cheap restaurant <SILENCE> is there anything else what type of food what is the address 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? Did you say you are looking for a restaurant in the west of town? What kind of food would you like? api_call R_cuisine north cheap da_vinci_pizzeria is a nice place in the north of town and the prices are cheap royal_spice is a nice place in the north of town and the prices are cheap The post code of royal_spice is royal_spice_post_code Sure , royal_spice is on royal_spice_address  you are welcome