user_turns: <SILENCE> im looking for a restaurant in the west part of town that serves christmas food <SILENCE> what about italian <SILENCE> can i get 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 ? api_call christmas west R_price Sorry there is no christmas restaurant in the west of town api_call italian west R_price la_margherita is a nice restaurant in the west of town serving italian food The phone number of la_margherita is la_margherita_phone  you are welcome