Goal: Task 01476: You are looking for a restaurant in the east part of town and it should serve vegetarian food. If there is no such venue how about indian type of food. You want to know the address and phone number of the venue.

user: I need a vegetarian restaurant

system: What area would you like?

user: East part of town. 

system: I'm sorry, there are no vegetarian restaurants in the east part of town.

user: Is there an indian restaurant in the east part of town? 

system: Yes, there are four Indian restaurants in the east part of town. What price range would you like?