Hello. My name is Dennis Harris.
user
Hello, how may I assist you today?
assistant
I am planning to book a flight ticket from DTW to IAD, can you please help me out?
user
Ok, may I know your travelling dates please?
assistant
Sure, my planned journey dates are from 08/19 to 08/21.
user
Sorry to tell you, there is no flight available on your request.
assistant
That's ok, thank you for the information.
user
Have a great day.
assistant