No surprise here. From [1] AFP, with thanks to Anthony:

Warnings from foreign governments of an imminent terrorist attack in Indonesia have led to a spate of cancellations from visitors planning to travel to the country, tourism officials in Jakarta said.

"At least 500 tourists have cancelled their planned trip to Indonesia for the December 2004 to April 2005 period," said Yachya Mahmoed of the Association of Indonesian Tour and Travel Agencies.