user_turns: <SILENCE> <SILENCE> east moderately priced <SILENCE> 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 part of town do you have in mind? I am sorry but there is no bistro restaurant that matches your request api_call R_cuisine east moderate Sorry there is no bistro restaurant in the moderate price range shanghai_family_restaurant is a great restaurant serving chinese food and it is in the moderate price range  you are welcome