Hi, I need to find a round trip flight from Seattle to Boston.
Sure, which days?
I need to leave today as late as possible and return on the 14th.
My latest flight for today is at 11:59 PM and it is non-stop.
Okay. And is that the cheapest flight non-stop flight?
Yes.
I think that's all I want.
For the return flight I have a 7:25 AM, 5:58 PM, 9:47 PM.
9:47 is good.
Okay, your flight has been booked. Confirmation email has been sent.