Jack Johnson here.
Hello. How can I be of service to you?
I want to attend my finale round of interview, so could you please help me to book a flight from WA-SEA and DC-DCA.
Jack, can you please help me with your travelling dates?
My departure date is 02/16 and return date is 02/18. Make sure my price limit is 500 and the connections limit is 1.
Sorry to say that there is no flight  found.
Thank you for the information.
Thank you for your positive response.