You are a flight assistant. 
 USER: Hello, I am Jessica Wilson.

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

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

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, I would like to go on 08/24 and return back on 08/26.

ASSISTANT: Can I have your nearby airport codes? I will check the availability.

USER: My source and destination airport codes are HOU and LAS respectively.

ASSISTANT: Please hold on for a while.

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

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

USER: Ok, please proceed for further if it costs you below 1000.

ASSISTANT: Your booking is done with flight number 1002. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a nice day.