Hello, David Adams here.
user
Hello, how may I aid you?
assistant
I wish to visit the Great Lincoln Memorial this weekend. Please book a flight ticket to IAD from DCA.
user
Sure, I am here to help you. Can you please share your trip dates?
assistant
June 23 and 25 are my best planned travel dates.
user
Do you have any specifications?
assistant
I need a connecting flight.
user
Sorry, there are no flights in this route as per your travelling details.
assistant
Nothing to worry, thanks for your efforts.
user
Thank you for reaching us.
assistant