Amy was a girlfriend of Jordan Pryce.
When Jordan Pryce was about to ascend to the CEO of Wayne-Powers due to an assassination attempt on Bruce Wayne's life, he held a private party with Amy that was to contain caviar and a good wine. However, she ultimately "missed the boat" because the Jokerz intercepted her and then bound and gagged her to a pole at the port. Instead, one of the Dee Dee twins had managed to pose as her in the dark room on the bed, waiting to ambush him.
In the edited version, the scene in question was shortened to the point where it started when Pryce questions where Amy is on the yacht, presumably due to the sensual nature of the original scene.