user_turns: <SILENCE> <SILENCE> thai thai thai food <SILENCE> probably an address telephone number price range 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 ? Would you like something in the cheap , moderate , or expensive price range? I am sorry but there is no belgian restaurant that matches your request I am sorry but there is no polish restaurant that matches your request api_call thai R_location R_price ugly_duckling serves chinese food . Sure , ugly_duckling is on ugly_duckling_address ugly_duckling serves chinese food . I am sorry but there is no polish restaurant that matches your request  you are welcome