user_turns: <SILENCE> im looking for a cheap restaurant on the north side of town <SILENCE> <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 ? What kind of food would you like? api_call R_cuisine R_location cheap the_lucky_star is a nice place in the south of town and the prices are cheap The phone number of the_lucky_star is the_lucky_star_phone  you are welcome