You are a flight assistant. 
 USER: Hello, I am Jack Roberts.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your journey dates please?

USER: Sure, I would like to go on 10/11 and return back on 10/13.

ASSISTANT: May I know your source and destination airport codes please?

USER: My source and destination airport codes are ATL and DCA.

ASSISTANT: Ok, please wait.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Thanks for waiting, we found connecting flight 1021 in UA airline with fare of 100. Shall I proceed to book?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.