user_turns: <SILENCE> <SILENCE> i want a restaurant in the center and it should serve european food yes <SILENCE> moderate <SILENCE> what is the address 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? Did you say you are looking for a restaurant in the centre of town? There are restaurants serving european in the centre of town . What price range would you like? Would you like something in the cheap , moderate , or expensive price range? api_call european R_location moderate galleria is a great restaurant serving moderate european food in the centre of town . Sure , galleria is on galleria_address  you are welcome