user_turns: <SILENCE> restaurant north welsh food <SILENCE> asian_oriental address 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? api_call R_cuisine north R_price Sorry there is no welsh restaurant in the north of town saigon_city is a nice restaurant in the north of town serving asian_oriental food Sure , saigon_city is on saigon_city_address The phone number of saigon_city is saigon_city_phone  you are welcome