You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, may I know your airport codes please?

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

ASSISTANT: Please wait for a moment. While I am checking for available flights. May I know your travel dates please?

USER: I would like to take off on 05/22 and return on 05/24.

ASSISTANT: Thanks for waiting. I have found AA airlines which flies with one connection.

USER: Please confirm the booking.

ASSISTANT: Yes, I have confirmed your flight ticket with flight number 1010.

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

ASSISTANT: Thank you.