The aircraft cabin will be split into bays, it's highly likely the CC was asked to move one pax from bay Y to bay Z by the captain.
In a 737 i can't imagine one passenger moving between two neighbouring bays making a huge difference, but as has been mentioned, the bay split/cargo split must be as per the paperwork.
Personally, I think it's incredibly rude (especially as an aviatior yourself) to refuse a request such as this from CC.
Last edited by TurningFinals; 8th September 2010 at 20:24.