How To Write An Application For Annual Leave At Work?

I want to apply for annual leave and want to extend it to one more week how to write to the management.

Dear sir,
I would like to go on annual leave for 4 days from May 4th to May 7th . I would really appreciate that if you would consider granting me this four days leave.
Best Regards
Sunny

Dear Sir,

This is to request you to grant me the Annual vacation from 10/09/2006 to 09/10/2006 for the year 2005. My vacation is due since 9th March 2006.

Your early consideration of my request would be appreciated.

With due respect, I ‘SSSS’ wants to go on Annual leave for
12 days from 1st March to 12th March so you are requested to grant
me annual leave for the same period. I would really appreciate it if you would consider grand-ing my leave for 12 days.