Hi. Paul Walker here.
Hello. How can I help you today?
Can you reserve a flight ticket to Seattle for my travel dates that is from June 22 to June 24?
Sure, I am glad to help you in booking.  Could you please share your travelling airport codes?
My airport codes for boarding the flight are DCA to SEA. I would like to prefer a economy class.
Do you have any halt in between your journey?
I am looking for a single connecting flight.
Please wait a moment.
Sure.
Sorry, no flights are available on your preferable travel dates.
Ok, that is not a problem. Thank you.
Thank you for reaching us, have a nice day.