user_turns: <SILENCE> <SILENCE> im looking for a restaurant serving vegetarian food vegetarian food <SILENCE> im looking for a restaurant serving vegetarian food how about vietnamese type of food if there is no such venue how about vietnamese type of food no how about vietnamese type of food im loooking for a restaurant serving vietnamese type of food <SILENCE> can i have the address of the venue <SILENCE> 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 kind of food would you like? You are looking for a restaurant serving any kind of food right? I'm sorry but there is no restaurant serving vegetarian food Could you please repeat that? I'm sorry but there is no restaurant serving vegetarian food Could you please repeat that? You are looking for a vegetarian restaurant right? I'm sorry but there is no restaurant serving vegetarian food Could you please repeat that? api_call vietnamese R_location R_price thanh_binh serves vietnamese food thanh_binh is on thanh_binh_address I am sorry but there is no other vietnamese restaurant that matches your request  you are welcome