Hello.
user
Hello. How may I help you?
assistant
Dennis Moore here. Can you book a flight ticket from IAD to BOS?
user
Dennis Moore, I am here to help you for this. When you are willing to travel?
assistant
My travel dates are 09/22 and 09/24.
user
Do you have any airline preference?
assistant
No.
user
Sorry for inconvenience, no flights are found with your criteria.
assistant
That's ok, no problem.
user
Thank you very much for reaching us.
assistant
Thank you.
user