Hello.
user
Hello, how may I guide you?
assistant
I am Angela Baker. I would like to book a flight ticket from IAD to ATL.
user
Sure, can I know you preferable dates?
assistant
I am planning to start on 08/20 and return back on 08/22.
user
I am sorry, there are no flights available.
assistant
Ok, no problem. Thank you for the information.
user
Thank you, have a good day.
assistant