user_turns: <SILENCE> id like an expensive restaurant yes id like to find a restaurant that serves korean food no id like to find a restaurant that serves korean food <SILENCE> may i have the address may i know more about the area 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 ? You are looking for a afghan restaurant right? I'm sorry but there is no restaurant serving afghan food You are looking for a afghan restaurant right? I'm sorry but there is no restaurant serving afghan food api_call korean R_location expensive little_seoul serves korean food in the expensive price range Sure , little_seoul is on little_seoul_address little_seoul is a nice place in the centre of town  you are welcome