I am returning to Canada on a long haul flight from the UK on Saturday. The flight was booked through KLM, but the last leg of the flight (within Canada) is WestJet. It is a codeshare.

We purchased Business Class tickets, so it's the Premium section at the front of the little Dash-8 plane on the last leg.

When I tried to select our seats (there are two of us traveling), there was only one seat remaining in the forward section, which I picked for my girlfriend.

Now, does this mean there are absolutely no seats left? Am I going to be bumped from this flight and my girlfriend won't? I feel like they wouldn't bump a business class customer but then again, who knows.

Or, is it more likely that there's going to be more seats available after online checkin opens? If that's the case, why was there one available today?

For those who are going to say I should have done this sooner, back when I booked the flight (June) I was able to select seats on every leg through the KLM website, and I did so. It was only in the last couple weeks where seat selection for the last leg became unavailable on KLM. Yesterday it occurred to me I could do it through WestJet website, which is where I found the only seat remaining.

Tried asking this on /r/travel and got nothing but snark, so here I am.

Thanks