<p>I don’t think there is anything stopping someone from signing up themselves, or at least getting themselves on the list. But since there is limited space (students are hosted by current students so there are only so many hosts) they need to control the situation.</p>
<p>Good job on getting assistance, and have a great time! WUSTL is a really great school and a beautiful campus. Just out of curiosity, where are you from?</p>