The letter given below is a sample letter which will help you understand how to write a letter to request a holiday.

From:
[your name]
[Street address]
[City, State, Zip Code]

To:
[The receiver]
[Street address]
[City, State, Zip Code]
Date MM/DD/YYY

Dear (Receiver)
This letter is regarding the annual holiday that i am entitled to.

I wish to take the holiday from 10th – 18th of this month as i have planned a trip outside the city with my family. I will be report in the office and resume my duties from 20th onwards.

I will also assure you that i will complete my part in the project we are working on 2 days before the proposed date of my holiday.
I will be very happy if you approve it.

Thanking you
Yours sincerely

Signature
[your name]