CREATE TABLE table_30906 ("Episode" FLOAT, "Title" TEXT, "Writer" TEXT, "Director" TEXT, "Original airdate" TEXT, "Ratings  ( Kanto ) " TEXT)

What was the original airdate for the episode written by daisuke habara and directed by akimitsu sasaki
SELECT "Original airdate" FROM table_30906 WHERE "Writer" = 'Daisuke Habara' AND "Director" = 'Akimitsu Sasaki'
SELECT "Original airdate" FROM "table_30906" WHERE "Director" = 'Akimitsu Sasaki' AND "Writer" = 'Daisuke Habara'