Hello.
user
Hello, how may I aid you today?
assistant
I want to book a flight ticket from IAD to BOS. Could you help me in booking?
user
Sure, could you please provide your departure and arrival dates?
assistant
My travelling dates are from Jan 16 - 18.
user
Are you looking for any preferred class?
assistant
No.
user
Do you have any other specifications to be met?
assistant
I prefer for direct flight.
user
May I know your name?
assistant
Linda Turner here.
user
Ok, please wait.
assistant
Ok.
user
 Thank you for your valuable time, unfortunately no flights available on that route.
assistant
That's ok, thank you.
user
Thank  you for reaching us.
assistant