user_turns: <SILENCE> italian food any part cheap <SILENCE> address 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? Would you like something in the cheap , moderate , or expensive price range? api_call italian R_location cheap la_margherita is a nice restaurant in the west of town serving italian food Sure , la_margherita is on la_margherita_address The post code of la_margherita is la_margherita_post_code  you are welcome