user_turns: <SILENCE> im looking for a cheap restaurant in the north part of town <SILENCE> whats the 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 ? api_call R_cuisine north cheap da_vinci_pizzeria is a nice restaurant in the north of town in the cheap price range The phone number of da_vinci_pizzeria is da_vinci_pizzeria_phone  you are welcome