user_turns: <SILENCE> <SILENCE> chinese food in the north part of town north part of town inexpensive <SILENCE> is there anything else 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 kind of food would you like? There are restaurants serving chinese food . What area do you want? There are restaurants serving chinese in the north of town . What price range would you like? api_call chinese north expensive hakka is a great restaurant serving expensive chinese food in the north of town . the_hotpot is a great restaurant serving expensive chinese food in the north of town .  you are welcome