Not sure if this is best here on in the AF forum, but here goes. I'm looking at booking two coach award flights for US-Paris next year on AF (they fit my schedule needs the best). Currently they are available if I look using the NWA Japan site. I'm looking to use Coupon Connection to trade for the miles I need, but I am wondering if any SkyTeam miles will do? If the seat shows available for 50K miles on the NWA JP site, could it also be redeemed for DL/CO/AF?? Can I place the reservation on hold for later ticketing by another using their miles, and if so which airline would I call to hold it?

Thanks in advance to all.