user_turns: <SILENCE> <SILENCE> restaurant in central yes thai type of food thai food yes no thai food <SILENCE> address phone number thank you goodbye
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 part of town do you have in mind? Ok , a restaurant in any part of town is that right? What kind of food would you like? I'm sorry but there is no restaurant serving unusual food Ok , a restaurant in any part of town is that right? You are looking for a unusual restaurant right? I'm sorry but there is no restaurant serving unusual food api_call thai R_location R_price sala_thong serves thai food Sure , sala_thong is on sala_thong_address The phone number of sala_thong is sala_thong_phone  you are welcome