Correction

In a Sept. 8 ''Moneywise'' column on the computerized airline reservation systems used by travel agents, it was incorrectly stated that Delta Air Line's system, expected to be in use soon, would also have ''bias.'' Bias refers to the tendency of the airline supplying the computer to put its own flights at the top of the list. Delta, in fact, is developing a system that the airline says will not have bias. On this system, all airline flights will be listed by their arrival and departure times, without favoring any airline, including Delta.