user_turns: <SILENCE> i am looking for an expensive restaurant on the east part of town italian <SILENCE> any food that serves any restaurant thats expensive can i have the address and post code the post code thank you goodbye
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 Sorry there is no expensive restaurant in the east of town serving italian food grafton_hotel_restaurant is a nice restaurant in the east of town serving british food grafton_hotel_restaurant is on grafton_hotel_restaurant_address The post code of grafton_hotel_restaurant is grafton_hotel_restaurant_post_code  you are welcome