user_turns: <SILENCE> danish food danish danish danish vietnamese vietnamese <SILENCE> west part of town <SILENCE> what is the 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 ? There are restaurants in the cheap price range . What type of food do you want? I'm sorry but there is no restaurant serving canapes food Could you please repeat that? I'm sorry but there is no restaurant serving danish food Could you please repeat that? api_call vietnamese R_location R_price thanh_binh serves vietnamese food in the cheap price range api_call vietnamese west R_price thanh_binh is a great restaurant serving cheap vietnamese food in the west of town . The phone number of thanh_binh is thanh_binh_phone  you are welcome