}
//delete reservation
StringValue reservationId = parameters.get("reservationid");
if (!reservationId.isEmpty()) {
reservationService.deleteReservation(reservationService.findReservationByID(reservationId.toLong()));
setResponsePage(ShowAllReservation.class);
}
BookmarkablePageLink createLink = new BookmarkablePageLink<>(
"create", ShowAllReader.class);