user_turns: <SILENCE> expensive restaurant north yes fusion food asian_oriental <SILENCE> whats 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 part of town do you have in mind? Did you say you are looking for a restaurant in the north of town? What kind of food would you like? I'm sorry but there is no restaurant serving fusion food api_call asian_oriental north expensive saigon_city is a great restaurant serving expensive asian_oriental food in the north of town . The phone number of saigon_city is saigon_city_phone  you are welcome