user_turns: <SILENCE> <SILENCE> singapore food <SILENCE> center part of town phone number price range 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 R_price little_seoul serves korean food . little_seoul is a nice restaurant in the centre of town serving korean food Can I help you with anything else? little_seoul is in the expensive price range The phone number of little_seoul is little_seoul_phone  you are welcome