user_turns: <SILENCE> looking for a moderately priced restaurant any polish european <SILENCE> whats its address whats its 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 ? What part of town do you have in mind? What kind of food would you like? I'm sorry but there is no restaurant serving polish food api_call european R_location R_price galleria serves european food in the moderate price range Sure , galleria is on galleria_address The post code of galleria is galleria_post_code  you are welcome