What season was the finale that aired on May 23, 2004?
CREATE TABLE "ratings" (
  "season" text,
  "season_premiere" text,
  "season_finale" text,
  "tv_season" text,
  "ranking" text,
  "viewers_in_millions" text
);
SELECT "tv_season" FROM "ratings" WHERE "season_finale"='May 23, 2004';