You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I want to fly from SEA to DCA. Can you book a ticket from that route?

ASSISTANT: Sure, can I know your good name please?

USER: Sure, Barbara Rodriguez here.

ASSISTANT:  When you are willing to travel?

USER: My planned travel dates are 03/31 and 04/02.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I want a flight with single connection.

ASSISTANT:  Is there any other specifications?

USER: Make sure that, my depart time should be in the morning only.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for choosing us.