user_turns: <SILENCE> <SILENCE> im looking for a restaurant in the center of town that serves russian food korean food korean food <SILENCE> what is the address and phone number <SILENCE> what is the address and phone number 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? I'm sorry but there is no restaurant serving russian food Could you please repeat that? api_call korean R_location R_price little_seoul is a nice place in the centre of town serving tasty korean food Sure , little_seoul is on little_seoul_address I am sorry but there is no other korean restaurant in the centre of town The phone number of little_seoul is little_seoul_phone  you are welcome