Hello.
user
Hello.
assistant
My name is Timothy King.
user
How can I  help you?
assistant
I would like to travel from IAD to SEA for a event, could you help me in booking a ticket?
user
Your travelling dates please?
assistant
Sure, my preferable dates are from 15-17 OCT.
user
I am sorry no flights found on your route.
assistant
That's ok. Thank you for your time.
user
Thank you for choosing us.
assistant