user_turns: <SILENCE> expensive restaurant serve korean food korean <SILENCE> address phone number area the area of the venue 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 korean R_location expensive little_seoul serves korean food Sure , little_seoul is on little_seoul_address The phone number of little_seoul is little_seoul_phone Can I help you with anything else? little_seoul is a nice place in the centre of town  you are welcome