Travel must be completed by October, 2005. The 2004 and 2005 Holiday periods which are blacked out, include: Nov. 20-29, 2004; Dec 10-31, 2004; Jan 1-10, 2005; Feb 4-22, 2005; Mar 1- Apr 3, 2005; May 26-Jun 1, 2005, Jul 1-5, 2005; Aug 31-Sep 6, 2005. Travel arrangements must be made at least 4 weeks in advance. Certificate does not include taxes.