I just flew a DL/AF trip RNO-SLC-CDG-PRG

We checked 3 bags and only 2 showed up in PRG. DL says all were loaded on the DL flight in SLC, AF says they can't find the third bag.

I assume my claim would be with DL since that is who the (award) ticket was with. AF seems quite clueless and while I have had delayed bags several times before, this is the first time where AF is basically saying "we have no idea where it is."

Think I'll see my bag again? It was mostly full of stuff that is simply unavailable in Prague.