Hello.
user
Hello, how may I help you?
assistant
I am Helen Evans, want to travel from DCA to HOU. Please help me in ticket booking.
user
Sure, may I know your trip dates please?
assistant
My travel dates are from 09/12 to 09/14.
user
Please wait of a while.
assistant
Ok.
user
Sure, there is no flight available as per your request.
assistant
That's fine, thank you.
user
Most welcome.
assistant