user_turns: <SILENCE> any any <SILENCE> whats the address thank you goodbye
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 vietnamese R_location moderate golden_wok is a nice restaurant in the north of town in the moderate price range Sure , golden_wok is on golden_wok_address  you are welcome