Well, a pendant light above the dining table, in a pinch a rope swing will also do: that's the price you pay if you don't sit down and do your homework.
I believe no matter how much you plan, the ceiling outlets never feel like they fit 100%. In our house, quite a few are misplaced because, for example, we later redesigned the kitchen-dining area and rotated the patio door. And in all the friends’ houses who were building, they often miss the mark as well. Often you arrange things differently than planned initially.
If the ceiling is plastered, you can still move something later with a track conduit. I would recommend preparing additional outlets in the corners of large rooms besides the central light outlets (they’re great for indirect lighting). If you don’t need them, just put a cover on them; if you do, you’ll be glad you prepared them. As suggested, switchable sockets are also very practical!