Hello, I am Charles Roberts.
user
Hello, how may I amend you?
assistant
I want to book a ticket from Dallas & Fort Worth, TX - DFW for site seeing.
user
Ok. Can I have your trip dates?
assistant
My trip dates are 05/13 and 05/15.
user
Where you want to travel?
assistant
I want to land at Washington, DC - IAD.
user
Sorry, no flights found with your information. Thanks for connecting us.
assistant
Ok, Thank you.
user