You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christopher Moore.

ASSISTANT: In which way I can aid you today?

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

ASSISTANT: Sure, I am happy to aid you in booking flight ticket. Can you please mention your preferable travel dates for booking flight ticket?

USER: I would like to take off on 05/08 and return on 05/10.

ASSISTANT: Please hold on a moment, I will check flight availability in this route.

USER: Sure, take your time.

ASSISTANT: There is a flight available in this route as per your requested dates, airline is Hawaiian and connection limit of this airline is 1 with minimum fare of 100. Are you ok with this flight?

USER: Please confirm the booking.

ASSISTANT: I have confirmed your flight ticket, flight number is 1001.

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

ASSISTANT: You are welcome Christopher Moore.