user_turns: <SILENCE> uh yes can i have expensive restaurant that serves thai food thai food center <SILENCE> uh can i get the address and the phone number okay thank you and 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 ? There are restaurants in the expensive price range . What type of food do you want? There are restaurants serving thai in the expensive price range . What area would you like? api_call thai R_location expensive bangkok_city is a great restaurant serving expensive thai food in the centre of town . Sure , bangkok_city is on bangkok_city_address The phone number of bangkok_city is bangkok_city_phone  you are welcome