I'm looking for 2 F seats from DFW-HND in September. I luckily was able to find 1 and booked it. Theirs currently, 5 available seats to be purchased with cash. Is it a good chance that T-14 another seat would open up or potentially they drop another seat open to partners?

(Google Flights showed 7 seats...but when i click into it seems already 2 seats are taken which is how I guessed it's 5 seats? I wonder if they proactively hold a seat??)