You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ronald Phillips.

ASSISTANT: How may I aid you?

USER: I need to reach National Gallery of Art in Washington DC as I was a addicted person to Arts. Can you please book a flight ticket to reach there?

ASSISTANT: Oh nice, I will help you, can you please provide source and destination airport codes?

USER: Sure, airport codes are MCO and DCA.

ASSISTANT: May I know your preferable journey dates?

USER: My travel date are 02/19 and 02/21.

ASSISTANT: There is a flight ticket available as per your requested dates.

USER: That's great.

ASSISTANT: Shall I proceed?

USER: Please proceed to book.

ASSISTANT: Ok. Your flight ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.

USER: Most welcome.