Hi.
user
Hello. How may I help you?
assistant
I am Robert Hernandez want to visit Las Vegas on my vacation, can you book a ticket with price under 500?
user
Please share your itinerary dates.
assistant
Sure, my travelling dates will be 05/06 and 05/08.
user
May I know your airport codes?
assistant
Yes, I want to fly from DCA to LAS.
user
Please hold on for a while.
assistant
Ok.
user
Sorry Robert, no flight is available for you.
assistant
That's ok, thank you.
user
Thank you for contacting us.
assistant