Hello. I am Timothy Turner.
Hello, how may I guide you?
I want to book a ticket from IAD to ORD to attend seminar, can you help me in booking?
Sure, can I know your preferable dates?
I am departing on 03/27 and return on 03/29.
I am sorry, there are no flights available.
That's ok, thank you for your information.
Thank you, have a good day.