Formal:
* E kōkua mai, ʻoluʻolu. (eh koh-oo-ah my, oh-loo-oo-loo) - This literally translates to "Please, help me." It's a polite and respectful request.
Informal:
* Kōkua ʻoe, ʻoluʻolu. (koh-oo-ah oh-eh, oh-loo-oo-loo) - This is a more casual way to say "Please help." It literally translates to "Help you, please."
You can also simply say "Kōkua" (koh-oo-ah) which means "help." This is generally understood as a request for assistance, but it might not be as polite as using "ʻoluʻolu."
Note: Adding "ʻoluʻolu" (oh-loo-oo-loo) to your request makes it more polite and respectful.