user_turns: <SILENCE> a restaurant in the center of town vietnamese vietnamese <SILENCE> <SILENCE> turkish restaurant turkish restaurant in the center of town <SILENCE> the address range range price range 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 ? There are restaurants in the centre of town . What type of food do you want? You are looking for a restaurant serving any kind of food right? api_call vietnamese R_location R_price thanh_binh serves vietnamese food I'm sorry but there is no vietnamese restaurant in the centre of town Can I help you with anything else? api_call turkish R_location R_price anatolia is a nice place in the centre of town serving tasty turkish food Sure , anatolia is on anatolia_address Can I help you with anything else? anatolia is a great restaurant anatolia is in the moderate price range  you are welcome