user_turns: <SILENCE> cough cheap restaurant in the west part of town <SILENCE> may i have 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 ? What kind of food would you like? api_call R_cuisine west cheap la_margherita is a nice restaurant in the west of town in the cheap price range The phone number of la_margherita is la_margherita_phone  you are welcome