user_turns: <SILENCE> i would like to find a restaurant that serves halal food halal is there a portugeuse food how about portugeuse food any area any price range <SILENCE> whats the phone number and 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 ? You are looking for a halal restaurant right? I'm sorry but there is no restaurant serving halal food Could you please repeat that? There are restaurants serving portuguese food . What area do you want? There are restaurants serving portuguese food in any part of town . What price range would you like? api_call halal R_location R_price nandos serves portuguese food The phone number of nandos is nandos_phone Sure , nandos is on nandos_address  you are welcome