user_turns: <SILENCE> <SILENCE> expensive restaurants <SILENCE> <SILENCE> what part address 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 ? What part of town do you have in mind? There are restaurants . That area would you like? api_call R_cuisine R_location expensive restaurant_one_seven is a great restaurant gourmet_burger_kitchen is a great restaurant Sure , gourmet_burger_kitchen is on gourmet_burger_kitchen_address gourmet_burger_kitchen is a great restaurant  you are welcome