user_turns: <SILENCE> im looking for a restaurant that serves tuscan food what about korean what about korean food yes <SILENCE> whats their 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 ? I'm sorry but there is no restaurant serving tuscan food Could you please repeat that? You are looking for a korean restaurant right? api_call korean R_location R_price little_seoul serves korean food The phone number of little_seoul is little_seoul_phone  you are welcome