Hello.
user
Hello, how may I assist you?
assistant
 I am a Formula one racer, I would like to participate in Hidden Valley and Primm Extreme RZR Ride going to be held at Las Vegas. Can you please help me in booking a flight ticket?
user
Sure, please forward your travelling dates?
assistant
I would like to start on 06/24 and need to return on 06/26.
user
Kindly mention your source and destination airport codes?
assistant
My source is at Charlotte, NC-CLT and my destination is at Las Vegas, NY-LAS.
user
May I know your good name please?
assistant
I am Michael Young.
user
Thanks for providing your name. No flights are available with your request.
assistant
Ok, no problem. Thank you for the information.
user
Thanks for opting us.
assistant