user_turns: <SILENCE> <SILENCE> moderately priced restaurant in the west part of town dont care <SILENCE> anything else 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? What kind of food would you like? api_call R_cuisine west moderate prezzo is a nice place in the west of town and the prices are moderate saint_johns_chop_house is a nice place in the west of town and the prices are moderate  you are welcome