Hello.
user
Hello. How may I help you?
assistant
I am planning to visit Seattle, WA-SEA. Can you please help me for booking the flight ticket from Las Vegas?
user
Ok, may I know your source code?
assistant
The source code is from NV-LAS.
user
Ok, please mention your trip dates.
assistant
The departure date is 11/10 and the return date is 11/12.
user
Ok, may I know your name?
assistant
Sure, my name is Paul Wilson.
user
Ok, there is no flight on your route.
assistant
Ok, no problem.
user
Thanks for choosing us.
assistant
Thank you for your information.
user