user_turns: <SILENCE> i need an expensive restaurant in the east part of town oh i dont care <SILENCE> whats the address alright 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 east expensive royal_standard is a nice restaurant in the east of town serving gastropub food Sure , royal_standard is on royal_standard_address  you are welcome