user_turns: <SILENCE> what about vietnamese type of food are there any that serve vietnamese food what about vietnamese food yes <SILENCE> and their phone number and the price range 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 ? I'm sorry but there is no restaurant serving irish food Could you please repeat that? You are looking for a vietnamese restaurant right? api_call vietnamese R_location R_price thanh_binh serves vietnamese food The phone number of thanh_binh is thanh_binh_phone thanh_binh is in the cheap price range  you are welcome