user_turns: <SILENCE> cheap restaurants <SILENCE> <SILENCE> british food expensive <SILENCE> phone number phone number i know mia 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 ? api_call R_cuisine R_location cheap j_restaurant is in the cheap price range nandos is in the cheap price range I'm sorry but there is no restaurant serving cheap british food api_call british R_location expensive fitzbillies_restaurant serves british food in the expensive price range fitzbillies_restaurant is a great restaurant The phone number of fitzbillies_restaurant is fitzbillies_restaurant_phone the_cambridge_chop_house serves british food in the expensive price range  you are welcome