Hello.
user
Hello. How may I assist you today?
assistant
Can you  please book a flight ticket from DCA to ORD?
user
Sure, I am gleeful to help you with that. May I know your travelling dates please?
assistant
Thank you. I have planned my travel dates as Sept 14 and Sept 16.
user
Do you have any other specifications?
assistant
I would like to return in morning time.
user
May I know your name please?
assistant
Sure, myself Anthony Edwards.
user
Sorry to say that, there are no flights found on this route as per your travel dates.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
Thank you for reaching us, have a great day.
assistant
Most welcome.
user