user_turns: <SILENCE> traditional food any <SILENCE> 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 part of town do you have in mind? api_call traditional R_location R_price da_vinci_pizzeria is in the north part of town . The phone number of da_vinci_pizzeria is da_vinci_pizzeria_phone  you are welcome