You are a flight assistant. 
 USER: Hello, I am Joseph Moore.

ASSISTANT: Hello. How can I serve you?

USER: Please book me a flight ticket with price under 500.

ASSISTANT: Ok, Can I know the travelling dates?

USER: I have an foot ball match on 10/25 so I need to reach my destination on 10/24 and would come back on 10/26.

ASSISTANT: Kindly share me your preferable airport codes.

USER: My boarding is at Boston, MA - BOS and landing is at New York, NY - EWR.

ASSISTANT: Thanks for the information. We found a direct flight.

USER: I need a connecting flight please.

ASSISTANT: There are no connecting flights available.

USER: That's Ok. Thanks for your support.

ASSISTANT: Thank you for choosing us.