Hi.
user
Hello, how may I help you today?
assistant
I want to fly from SEA to DCA. Can you book a ticket from that route?
user
Sure, can I know your good name please?
assistant
Sure, Barbara Rodriguez here.
user
 When you are willing to travel?
assistant
My planned travel dates are 03/31 and 04/02.
user
Do you need direct flight or connecting flight?
assistant
I want a flight with single connection.
user
 Is there any other specifications?
assistant
Make sure that, my depart time should be in the morning only.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
No issues, thank you for the information.
user
Thank you for choosing us.
assistant