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