Hi, I am Alexander Walker.
Hello, How exactly I can serve you the best today?
I want to book a flight ticket to Las Vegas with price under 500. Can you please help me with it?
 Sure, I would be happy to help you. Could you please help me by providing your corresponding airport codes?
Airport codes are OAK-LAS.
What are your planned trip dates?
Trip dates are 09/14 and 09/16.
Ok, please wait a moment, let me search a flight for you.
Ok.
There is no flight found in search to your route on your dates of journey.
Ok, no oissues.
Thank you for choosing us.