user_turns: <SILENCE> im looking for a restaurant in any area serving african food <SILENCE> phone number no thank you goodbye
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 ? api_call african R_location R_price bedouin is a nice restaurant in the centre of town serving african food The phone number of bedouin is bedouin_phone Can I help you with anything else?  you are welcome