user_turns: <SILENCE> <SILENCE> expensive russian food how about russian food how about russian food yes how about expensive british no how about british food yes it doesnt matter <SILENCE> 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? I'm sorry but there is no restaurant serving malaysian food Could you please repeat that? You are looking for a russian restaurant right? I'm sorry but there is no restaurant serving russian food You are looking for a russian restaurant right? I'm sorry but there is no restaurant serving russian food You are looking for a british restaurant right? There are restaurants serving british in the expensive price range . What area would you like? api_call british R_location expensive grafton_hotel_restaurant serves british food in the expensive price range The phone number of grafton_hotel_restaurant is grafton_hotel_restaurant_phone  you are welcome