public void HotelUpdate(Person person, string siteId)
{
var seminar = SiteService.GetLatestSeminar(siteId);
var seminarPerson = person.GetLatestRegistration(siteId);
if (seminarPerson.Seminar == seminar && !string.IsNullOrWhiteSpace(seminarPerson.HotelConfirmation))
{
_notificationService.RemoveFromMailingList(seminar, person, MailingLists.HotelReminder);
}
}