user_turns: <SILENCE> african african no african food <SILENCE> address 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 kind of food would you like? You are looking for a restaurant serving any kind of food right? What part of town do you have in mind? api_call african R_location R_price bedouin serves african food Sure , bedouin is on bedouin_address  you are welcome