You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello, how may I aid you today?

USER: I am Jacob Allen. Please book a direct flight from Seattle to New York.

ASSISTANT: Sure, I am here to help you with that booking. May I know your preferable travel dates please?

USER: Ok, my travelling dates are 12/29 and 12/31.

ASSISTANT: Can you please provide your source and destination codes for booking?

USER: Sure, my airport codes are from SEA to EWR.

ASSISTANT: Jet Blue airlines are providing a flight with connecting and with a fare of 200. Shall I proceed with booking?

USER: Yes, please proceed with booking.

ASSISTANT: Jacob Allen, your booking is done with flight-1001.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a safe journey.