Hello.
Hello, how can I help you?
Can you help me to book a flight ticket from IAD to DFW?
Let me know the travel dates please?
My travel dates are Feb 26 and Feb 28.
Is there any connection limit?
No.
Is there any class preference?
I prefer economy class.
Are there any more preferences?
I would like to return back in the afternoon time.
May I know your name please?
My name is Nancy Martinez.
 Nancy Martinez, I regret to inform that there are no flights on your route with the given dates.
No issues, thank you for the information.
Thank you for reaching us.