You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be your helping hand?

USER: I am planning to travel to Washington to meet my friend after longtime, can you please help me for booking?

ASSISTANT: Sure, can I know the airport codes of your route?

USER: My airport codes are DFW and DCA.

ASSISTANT: Please share the dates which you are looking for.

USER: My trip dates are 04/07 and 04/09.

ASSISTANT: Please hold on for a moment.

USER: Make sure that, my connection limit should be 1.

ASSISTANT: Yes, there is a flight available with AA airlines, shall I book it?

USER: Ok, please proceed for booking.

ASSISTANT: Can I know your name?

USER: My name is Karen Jones.

ASSISTANT: Ok. Your ticket is booked, flight number is 1012.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.