user_turns: <SILENCE> <SILENCE> lebanese food in the center of town <SILENCE> 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 lebanese R_location R_price ali_baba serves lebanese food Sure , ali_baba is on ali_baba_address The phone number of ali_baba is ali_baba_phone  you are welcome