user_turns: <SILENCE> im looking for a restaurant in the center of town serving german food <SILENCE> how about international food <SILENCE> what is the phone number and price range 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 german R_location R_price Sorry there is no german restaurant in the centre of town api_call international R_location R_price the_varsity_restaurant is a nice restaurant in the centre of town serving international food The phone number of the_varsity_restaurant is the_varsity_restaurant_phone  you are welcome