Hello.
user
Hello, how may I help you?
assistant
I am Anthony Parker. I want to book a ticket from DCA to AUS to attend seminar, can you help me in booking?
user
Sure, may I know your travelling dates?
assistant
I am departing on 01/14 and return on 01/16.
user
Sorry to inform you, there is no flight available as per your request.
assistant
That's ok, thank you for your information.
user
Most welcome.
assistant