Hi.
user
Hello. How may I help you today?
assistant
Please help me out in booking the ticket from DFW to IAD.
user
Ok, I am here to help you with that. Can I know your journey dates?
assistant
My trip dates will be Apr 5 to Apr 7.
user
May I know your good name?
assistant
Raymond Gonzalez is my name.
user
Do you have any other requirements?
assistant
My depart time must be in the afternoon with direct flight.
user
Please wait  for a minute.
assistant
Ok.
user
Sorry to say that, there are no flights available based on your travelling dates.
assistant
That's ok, thank you.
user
Thank you for your consulting us.
assistant