Madebo Duhiti confirmed the room number. How to write letters and send emails?

You can ask your agent to give you a template, then fill it out according to the hotel confirmation letter and send it to the hotel. However, hotels generally only answer to arrange as much as possible, because the rooms you specify may be occupied when you go to the island, or they may be designated by other tourists, so hotels generally arrange them randomly, and only when the rooms are empty will they be given priority.