Hi.
user
Hello, how may I assist you today?
assistant
I am Carolyn White want to visit IAH, can you book a ticket from DCA?
user
Sure, may I know your dates of journey please?
assistant
Sure, my travelling dates will be 08/17 and 08/19.
user
Ok, wait for a moment please.
assistant
Ok.
user
Sorry to say, that there is no flight found as per your travelling details.
assistant
That's ok, thank you.
user
You are welcome.
assistant