user_turns: <SILENCE> im looking for an expensive restaurant in the east part of town i dont care <SILENCE> whats 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 ? There are restaurants in the expensive price range and the east of town . What type of food 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 The phone number of grafton_hotel_restaurant is grafton_hotel_restaurant_phone  you are welcome