You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER:     Please book a flight ticket from SEA to DCA.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are Oct 30 and Nov 01.

ASSISTANT: Do you have any preference?

USER: I need a connecting flight.

ASSISTANT: Let me know your name.

USER: My name is Jason Scott.

ASSISTANT: Found ticket with Southwest airlines for price 200 having flight number 1006.

USER: Please proceed with booking.

ASSISTANT: Ticket is booked.

USER: Thank you for the help.

ASSISTANT: Thank you.