Goal: Task 06288: You are looking for a restaurant in the north part of town and it should serve world food. If there is no such venue how about indian type of food. You want to know the address, phone number, and price range of the venue.

user: Can you find me a restaurant in the north part of the city?

system: There are 9 matching records in the north, what price range do you want ?

user: I don't care. 

system: Is there a certain type of food that you would like?

user: Yes, I would like world food.

system: I am sorry, I can't find any restaurant serves world food in the north . Is there another type of food or area you might be interested in today? 

user: Maybe some Indian food?

system: Great hit