Section reserved for party most of the shift, party no-shows

This just happened to me, just wanna rant, I'm pissed off. Had 3 tables my entire shift because I could only do pick up outside of the tables reserved for my 12 top party. It was slow today on top of all that. But the party no shows. Now my whole shift is absolutely fucked because of them. And there's nothing I can even do about it.