I just made reservations for this weekend a few minutes ago. It is a very last minute trip, booked sunday, leave today, and I have called every day for different restaurant reservations, always hearing "we're booked, sorry." I wasn't even going to call today, but I just did, and lo and behold, all my #1 choices had openings. Call back at random and don't stop calling just even if it is just days before the date you want your ressie. That is when people cancel, is my guess. Good luck!