Hello.
user
Hello, how may I help you?
assistant
I am Thomas Anderson, want to travel from DCA to DFW. Please help me.
user
Sure, may I know your travelling dates please?
assistant
My travelling dates are from 05/15 to 05/17. PLease check for only direct flight.
user
Sorry to inform you, there is no flight available as per your request.
assistant
That's fine, thank you.
user
Most welcome.
assistant