<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by cattle:
Why why why why why why why why why why why why why why Why why why why why why why why why why why why why whyWhy why why why why why why why why why why why why why Why why why why why why why why why why why why why why would you want to change your seats after going through so much trouble to ask us which ones to choose in the first place?
And yes, the check in agent can change them for you (but not to J so don't bother the nice agent 
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Makes you wonder if the original poster, despite posting 779 times, has ever flown on AC before?
If you're on a Z-class ticket, its truly doubtful if any AC agent would go out of their way to do anything for you.