user_turns: <SILENCE> german food east <SILENCE> address phone number post code 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 part of town do you have in mind? api_call german east R_price charlie_chan is a great restaurant Sure , charlie_chan is on charlie_chan_address The phone number of charlie_chan is charlie_chan_phone The post code of charlie_chan is charlie_chan_post_code  you are welcome