user_turns: <SILENCE> im looking for a restaurant in the center part of town that serves unusual food <SILENCE> thai food <SILENCE> address 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 unusual R_location R_price Sorry there is no unusual restaurant in the centre of town api_call thai R_location R_price bangkok_city is a nice restaurant in the centre of town serving thai food Sure , bangkok_city is on bangkok_city_address The phone number of bangkok_city is bangkok_city_phone  you are welcome