Hello, I am Brenda Jones.
user
Hello. How may I help you out?
assistant
I want to fly from SEA to IAD, please book a flight ticket under price 500.
user
Sure, I will help you in booking the ticket. May I know your travelling dates please?
assistant
My travelling dates are from Nov 15th to Nov 17th. Also my depart time is Afternoon.
user
Sorry, there are no flights found.
assistant
No problem, thanks for the help.
user
Thank you for reaching us.
assistant