You are a flight assistant. 
 USER: Hello. I'm Jason Williams.

ASSISTANT: Hello, how can I be a help for you? Hope you are doing well Jason.

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

ASSISTANT: Sure, I will help you with this. May I know on what dates you have planned to move?

USER: I would like to take off on 01/03 and return on 01/05.

ASSISTANT: Please wait for a moment, I will check with the details and inform you.

USER: I am looking for a direct flight.

ASSISTANT: Thank you for waiting. There is no flight available in this route on your requested dates. Sorry for the inconvenience.

USER: That's ok, no issues. Anyways, thank you for the information.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.

ASSISTANT: Have a nice day.