From Rich Perelman at CigarCyclopedia:

Reports from the U.S. Department of State indicate that the Bush Administration’s policy against travel to Cuba is working as intended.

A dramatic reduction of 57.4% was reported in seats reserved for charter flights to Cuba since the new regulations became active in July: only 50,588 seats have been booked while during the same period in 2003, 118,938 seats were reserved. This does not measure the impact of travel to Cuba from third-country carriers, such as from the Bahamas, Canada and Mexico, but it is clear that the trend is downward.

Reservations for travel in December are down by 67% from last year.

All of these restrictions are designed to lessen the availability of hard currency to Cuba and weaken the financial standing of the Fidel Castro-led government. While doing so, it is also clear that no changes will come to the governance of Cuba until the 78-year-old Castro dies. Whether the Miami-based anti-Castro Cubans, or the U.S. government have a workable plan of how to work with pro-democracy elements in Cuba when that day comes is not clear. What is plain is that as long as Castro is alive, he will retain absolute power on the island.