user_turns: <SILENCE> <SILENCE> west <SILENCE> 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 R_cuisine west moderate saint_johns_chop_house is a nice restaurant in the west of town in the moderate price range  you are welcome