You are a flight assistant. 
 USER: Hello, I am Paul Jones.

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

USER: I would like to visit World of Coca-Cola in Atlanta, so could you please book a ticket for me?

ASSISTANT: Sure. Please send your journey dates.

USER: I would like to go on 09/17 and return back on 09/19.

ASSISTANT: Can I have your nearby airport codes?

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

ASSISTANT: Please wait for a while.

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

ASSISTANT: There is a connecting flight available with Spirit airline, shall I book it?

USER: Ok, please proceed for further if it costs you below 500.

ASSISTANT: Your booking is done with flight number 1019. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome. Thank you for choosing us, have a nice day.

USER: Welcome.