user_turns: <SILENCE> i want an expensive restaurant <SILENCE> african expensive i dont care expensive <SILENCE> does it serve african food no african does it serve african food i want african food what is the phone number what is the phone number 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? Would you like something in the cheap , moderate , or expensive price range? What part of town do you have in mind? There are restaurants if you don't care about the area or the type of food . What price range would you like? api_call african R_location expensive meze_bar_restaurant is in the expensive price range meze_bar_restaurant serves turkish food curry_queen is in the expensive price range curry_queen is a great restaurant Sorry, I can't hear you bedouin serves african food in the expensive price range bedouin is a great restaurant The phone number of bedouin is bedouin_phone  you are welcome