Hi.
user
Hello, how may I aid you?
assistant
I would like to make a flight ticket reservation from IAD to DCA, can you please help me with that?
user
Sure, could you please provide your travelling dates to search for the flight?
assistant
Sure, my planned travelling dates are Jun, 21 and 23 respectively.
user
Sure, can I know your name?
assistant
Sure, my name is Eric Smith  here.
user
Are you fine with connecting flight?
assistant
Yes, flight has to be with single connection.
user
Do you have any other requirements to be met?
assistant
No, thank you for asking.
user
Sorry to say, no flight is available for you.
assistant
Ok, not an issue.Thank you for your information.
user
Thank you for reaching us.
assistant