user_turns: <SILENCE> im looking for a restaurant in the west park of town that serves australian food australian how about vietnamese <SILENCE> can i get 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 ? What kind of food would you like? I'm sorry but there is no restaurant serving australian food api_call vietnamese west R_price thanh_binh is a nice place in the west of town serving tasty vietnamese food The phone number of thanh_binh is thanh_binh_phone  you are welcome