user_turns: <SILENCE> tuscan food east tuscan food <SILENCE> european <SILENCE> north 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 tuscan east R_price Sorry there is no tuscan restaurant in the east of town api_call tuscan south R_price Sorry there is no european restaurant in the east of town Sorry there is no european restaurant in the south of town  you are welcome