user_turns: <SILENCE> i want scottish food no i want scottish food scottish food i want scottish food how about vietnamese food vietnamese food <SILENCE> okay may i have the address 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 serving spanish food . What area do you want? What part of town do you have in mind? There are restaurants serving turkish food . What area do you want? What part of town do you have in mind? I'm sorry but there is no restaurant serving scottish food Could you please repeat that? api_call vietnamese R_location R_price thanh_binh serves vietnamese food Sure , thanh_binh is on thanh_binh_address  you are welcome