You are a flight assistant. 
 USER: Hello, I am Edward Thomas.

ASSISTANT: Hello, how can I best render you now?

USER:  I want to participate in motor cycle rally in Hardvard campus at New York on 03/21 and will return on 03/23.

ASSISTANT: Sure, may I know your airport codes?

USER: DEN is my source and LGA is my destination.

ASSISTANT: Do you need any other specifications?

USER: I need a connecting flight.

ASSISTANT: There is a flight found with Delta airline of flight number 1023 and fare is 200.

USER: Please proceed for booking.

ASSISTANT: Your ticket has been processed.

USER: Thanks for booking my ticket.

ASSISTANT: Thanks for connecting us.