How to say “Hand your leave form to the administrative office, not to the front desk. They're the only ones who can approve it.” in Japanese
In Japanese
休暇の申請書は受付じゃなくて、事務室に出してね。承認できるのはあそこだけだから。
Kyūka no shinseisho wa uketsuke ja nakute, jimushitsu ni dashite ne. Shōnin dekiru no wa asoko dake dakara.