You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Paul Walker. I am planning to visit Olympic National Park at Washington, could you please help me with booking a flight ticket from Seattle?

ASSISTANT: Ok, I am gleeful to help you out. May I know your airport code please?

USER: My source airport code is SEA and destination airport code is DCA.

ASSISTANT: Ok, could you share your travel dates please?

USER: I would like to take off on 12/12 and return on 12/14.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Thank you for your patience, Delta airlines is available for you with airfare of 100. Shall I proceed further in booking?

USER: Please confirm the booking if the connection is 1.

ASSISTANT: Yes with your acceptance, your ticket has been confirmed for the flight 1009.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: You are welcome, thank you for reaching us. Have a great day.