user_turns: <SILENCE> im looking for an expensive restaurant serving vegetarian food <SILENCE> is there is no such venue that have asian_oriental type of food can i have the phone number and the area can i have the area of the restaurant 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 ? api_call R_cuisine R_location expensive Sorry there is no vegetarian restaurant in the expensive price range saigon_city is a great restaurant serving asian_oriental food and it is in the expensive price range The phone number of saigon_city is saigon_city_phone saigon_city is a nice place in the north of town  you are welcome