user_turns: <SILENCE> afghan afghan <SILENCE> phone number area phone number okay 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 afghan R_location expensive The price range at ugly_duckling is expensive . The phone number of ugly_duckling is ugly_duckling_phone The price range at ugly_duckling is expensive . The phone number of ugly_duckling is ugly_duckling_phone  you are welcome