user_turns: <SILENCE> i want a cheap restaurant that serves cuban food <SILENCE> how about chinese <SILENCE> is it chinese food yes that serves chinese food whats their address and their 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 cuban R_location cheap Sorry there is no cuban restaurant in the cheap price range api_call chinese R_location cheap the_missing_sock is a great restaurant serving international food and it is in the cheap price range You are looking for a restaurant is that right? charlie_chan is a great restaurant serving chinese food and it is in the cheap price range Sure , charlie_chan is on charlie_chan_address The phone number of charlie_chan is charlie_chan_phone  you are welcome