Hello.
user
Hello, how may I guide you at present?
assistant
Carolyn Perez here. I would like to book a  flight from DEN to DCA where I would like to meet my college friends.
user
Sure, May I know your planned journey dates?
assistant
My itinerary travel dates are Sept 21 and Sept 23.
user
Let me know your connection limit.
assistant
I would like to board a connecting flight.
user
Ok, Do you have any other requirements?
assistant
No, I have no more preferences.
user
Ok, please wait for a while.
assistant
Sure, take your time.
user
Sorry to notify you that, there were no flights found based on your scheduled dates.
assistant
No issue, thank you very much for the assistance.
user
Thank you for reaching us.
assistant