not to get your hopes up, but i've worked professionally in the entertainment industry since I was 10, and anything like this is considered a scam. Yes, there are agents there, but you can just as easily find an agent without paying the price for something like this. they literally invite pretty much anyone who auditions for these things because they make money per person who then attends the event. If you have any questions on a better way to go about getting an agent then just PM me.
I just don't want you wasting you money on this when there are better, more professional, and free ways of doing it.
good luck with everything!