CREATE TABLE table_30850 ("Series" FLOAT, "Premiere" TEXT, "Finale" TEXT, "Runners-up" TEXT, "Winner" TEXT)

What is the date of the finale where Holly Bell was runner-up?
SELECT "Finale" FROM table_30850 WHERE "Runners-up" = 'Holly Bell'
SELECT "Finale" FROM "table_30850" WHERE "Runners-up" = 'Holly Bell'