[General] Help With Writing A Formal Letter.

Okay, so basically I really need help with an introductry paragraph/sentance.
I'm currently writing a letter to the super indendant of my school about hanging up flyers to start a band.
I can pretty much write everything else in the letter.
But I'm right now enduring a bad case of writers block and can't think of anything to say.
Basically our situtation is that we where told (My friend and I, whom is also involved in the band) by a secretary that we had to write something to the super indendant after asking if we can hang up flyers in our school.
So if you have any ideas it'd be great.
THANKYOU SO MUCH,
Alissa.

(And I do realise that the above isn't gramatically sound.. But I'm in quite a rush.)

[Ouisch]

Dear XXXXXXXX,

Several friends and I are interested in forming a band. To this end, we would like permission to post flyers around the school to invite interested students to audition.

Please advise if this is acceptable, and also let me know of any posting restrictions (size of flyer, restricted areas, etc.)




(Just some thoughts off the top of my head, not sure if this is what you're after....)