user_turns: <SILENCE> i would like a cheap restaurant in the north part of town i dont care <SILENCE> what is their phone number 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 kind of food would you like? api_call R_cuisine north cheap royal_spice is a nice place in the north of town and the prices are cheap The phone number of royal_spice is royal_spice_phone  you are welcome