user_turns: <SILENCE> im looking for a expensive restaurant in the east part of town yes east <SILENCE> is there anything else what is the address what is the post code 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 . What type of food do you want? You are looking for a restaurant serving any kind of food right? What part of town do you have in mind? api_call R_cuisine east expensive yu_garden is a nice place in the east of town and the prices are expensive royal_standard is a nice place in the east of town and the prices are expensive Sure , royal_standard is on royal_standard_address The post code of royal_standard is royal_standard_post_code  you are welcome