Hi.
Hello. How can I aid you today?
I am David Davis want to visit Houston, can you book a ticket from DCA to HOU?
Sure, I am here to help you with that, May I know your travelling dates?
Sure, my travelling dates will be 03/05 and 03/07.
Ok, wait for a minute. Sorry to say that, there are no flight's available based on your travelling dates.
Ok.\. That's ok, thank you.
Thank you for reaching us.