Hello, I am Lisa Martinez.
user
Hello. How can I help you today?
assistant
can you please aid me in booking a ticket in a flight which is going from DEN to DCA?
user
Sure, I am glad to help you in booking. Can you please share your travel dates?
assistant
Sure, I would like to go on 11/19 and return back on 11/21.
user
Please wait a moment.
assistant
Ok, ensure it is a direct flight.
user
Thank you for waiting. Sorry, no flights are available on your planning dates.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us.
assistant
Welcome.
user