Hello.
user
Hello, how may I guide you?
assistant
Donald White here.
user
Ok.
assistant
I want to attend a Seminar in Seattle. Can you please help me for booking the flight ticket?
user
Sure, can I know your preferable dates?
assistant
My travelling dates are from 01/10 to 01/12.
user
Ok, can I know your airport codes?
assistant
My airport codes are from IAD to SEA.
user
I am sorry, there are no flights available.
assistant
Anyway, thanks for the information.
user
Thank you, have a good day.
assistant