user_turns: <SILENCE> looking for a cheap restaurant <SILENCE> <SILENCE> may i get the address and 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 ? api_call R_cuisine R_location cheap thanh_binh is in the cheap price range thanh_binh is a nice place in the west of town Sure , thanh_binh is on thanh_binh_address The phone number of thanh_binh is thanh_binh_phone  you are welcome