user_turns: <SILENCE> i need a cheap restaurant in the north part of town <SILENCE> whats the phone number 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 ? api_call R_cuisine north cheap royal_spice is a nice restaurant in the north of town in the cheap price range The phone number of royal_spice is royal_spice_phone Sure , royal_spice is on royal_spice_address  you are welcome