Hello, I am Richard White.
Hello, how may I help you?
Please make me a reservation with in 500 to DC - IAD.
Sure, may I know your travelling dates please?
I will leave on 12/27 as I have interview on that day and will return on 12/29.
Ok, please share your source code.
My source is DC - DCA.
Thank you for providing your details, sorry to say no flights found with your details.
It's Ok.
Thank you for reaching us, have a nice day.