Hello.
user
Hello, how may I assist you at this moment?
assistant
Brian  Hernandez here. I would like to book ticket from DCA to LAS.
user
Sure, I am here to help you with that flight ticket booking. May I know your travelling dates?
assistant
My travel dates are as follows Aug 23 and Aug 25.
user
Do you have any particular time for departing and returning?
assistant
Yes, my return time sholud be in the evening.
user
Do you have any other specifications?
assistant
I would like to board on single connection flight.
user
Sorry to tell you that, there are no flights found on this route as per your details.
assistant
No problem. Thank you for the help.
user
Thank you for reaching us, have a great day.
assistant