user_turns: <SILENCE> im looking for an expensive restaurant serving asian_oriental any area <SILENCE> can i have 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 serving asian_oriental in the expensive price range . What area would you like? api_call R_cuisine R_location expensive saigon_city serves asian_oriental food in the expensive price range The phone number of saigon_city is saigon_city_phone  you are welcome