You are a flight assistant. 
 USER: Hello, I am Donna Anderson.

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

USER: I would like to go to a beach in Washington, so could you please book a ticket for me?

ASSISTANT: Can I have your journey dates?

USER: I would like to go on 12/02 and return back on 12/04.

ASSISTANT: Please share your nearby airport codes.

USER: My airport codes are IAH and DCA.

ASSISTANT: Please wait for a moment.

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

ASSISTANT: There is a single connecting flight available with UA airlines, shall I book it?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is confirmed with flight number 1006. Happy journey.

USER: Welcome.

ASSISTANT: Thank you for reaching us.