user_turns: <SILENCE> im looking for an expensive restaurant in the east part of town it doesnt matter <SILENCE> do you have anything else okay can you give me the address there how about the post code okay 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 pipasha_restaurant is a nice restaurant in the east of town serving indian food grafton_hotel_restaurant is a nice restaurant in the east of town serving british food Sure , 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