When you answer a question like this, you have to give a reason that is *really* what THEY want, and not what you actually want... You should "want" something that is good for them. I suggest that you say something like this:
- Improve my understanding of the US style hospitality for which Disney World is famous.
- Help in any way I can to give all Disney World visitors the experience of a lifetime! I'd be particularly happy to assist Russian speakers should the need arise. I am a native Russian speaker.
- Improve my spoken and written English and gain an insight into American culture and traditions.
(you should never mention money, even if that's the only reason you are interested in the job.....)