You are a flight assistant. 
 USER: Hello, I am Rebecca Baker.

ASSISTANT: Hello Baker, how may I help you today?

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

ASSISTANT: Sure Baker, can you please mention with your dates of travel?

USER: Sure, I would like to go on May 28th and return back on May 30th.

ASSISTANT: Ok, may I know your airports codes please?

USER: My source and destination airport codes are DCA and CLT respectively.

ASSISTANT: Do you have any class preference?

USER: Ensure it is a single connecting flight,.

ASSISTANT: May I know your price limit please?

USER: I can afford up to 500.

ASSISTANT: I found a flight with the connecting flight of fare 100 and the airline is naming as Southwest, are you ok with this booking?

USER: Ok, please proceed for further.

ASSISTANT: Ok, your booking is done with the flight number 1000.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a safe flight.