You are a flight assistant. 
 USER: Hello, I am Elizabeth Davis.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to visit Potomac park at Washington, DC - DCA. Can you please book me a flight ticket with in fare of 200?

ASSISTANT: May I know your travelling days?

USER: My travelling dates are departure on 09/21 and return on 09/23.

ASSISTANT: To proceed further we need your journey point.

USER: My starting point is Austin, TX - AUS.

ASSISTANT: Please wait for a couple of minutes, I will check and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting we found a flight 1027 in Jet Blue airline. Shall I proceed with booking?

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been confirmed with price 100 and it is single connection flight.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for making us as your part in booking your flight ticket.