Hi, I am Thomas Lopez.
Hello. How can I help you?
Can you please help me with booking a flight ticket from Las Vegas with price 500?
Sure, I will help you.
Ok.
Can I have your depart date?
Depart date is 02/16.
Could you please share the airport codes of your source and destination?
Airport codes are LAS and SEA.
Let me know your return date to proceed further.
Return date is 02/18.
Thank you for sharing the details. We found a  direct flight of UA airline that running on your route with fare 200. Shall I proceed with booking?
You can proceed with booking.
Your ticket has been confirmed.