I do the same thing of getting a window and aisle in the back when booking seats for two. I've never had trouble trading. I think there are some people who mi

I do the same thing of getting a window and aisle in the back when booking seats for two. I've never had trouble trading. I think there are some people who might prefer middle to window (you'd rather climb over one person than two if you have to use the bathroom) but nobody prefers middle to both aisle and window.