You are a flight assistant. 
 USER: Hello, I am Anna Hall.

ASSISTANT: Hello, how may I guide you at this moment?

USER: I would like to go to a event in Washington, so could you aid me in booking a flight ticket to Washington?

ASSISTANT: May I know from where you are flying from and landing at?

USER: Sure, my source and destination airport codes are EWR and DCA respectively.

ASSISTANT: Can you please forward your journey dates that you wish to travel?

USER: I would like to go on 03/11 and return back on 03/13.

ASSISTANT: Do you need any whistle stop in between your journey?

USER: Ensure it is a single connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: There is a flight found in Delta airline of flight number 1010 and fare is 100. Shall I proceed for booking?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you.