Hello, Katherine Adams here.
user
Hello, how may I help you?
assistant
I want to travel from IAD to DEN to attend a small business meet. Will you please help me in booking my ticket?
user
Ok, can I know your trip dates?
assistant
My trip dates are from 12/29 to 12/31.
user
Sorry to say, on your dates there are no flights to block your seat Adams.
assistant
It's ok, thank you for your help.
user
Thank you for reaching us, have a nice day.
assistant
Thank you.
user