user_turns: <SILENCE> <SILENCE> dont care east part of town expensive <SILENCE> address 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? There are restaurants if you don't care about the food . What area do you want? There are restaurants in the east of town serving any kind of food . What price range would you like? api_call R_cuisine east expensive grafton_hotel_restaurant is a nice place in the east of town and the prices are expensive Sure , grafton_hotel_restaurant is on grafton_hotel_restaurant_address  you are welcome