Hello, I am William Evans.
user
Hello. How can I aid you?
assistant
I need a direct flight to attend a client meeting in Austin, so please help me in flight booking.
user
Sure,  let me know your origin airport code.
assistant
My source airport code is DFW.
user
May I know your dates of travel please?
assistant
I want to fly on Apr 18, return on Apr 20.
user
Do you have any other specifications?
assistant
No.
user
Ok, please wait for a while.
assistant
Sure, my destination airport code is AUS.
user
Sorry for the inconvenience, we have not found any flights running as per your requirements.
assistant
No problem, thank you.
user
Thank you for reaching us.
assistant