急需一篇英文的道歉信,

Dear,
I'm writing this letter to apologize to you for the mistake that i have done yesterday. I have acknowledged that my fault has brought you great trouble and unconviniences. I hereby express my deep sorrow for this matter and we are going to do our best to make it up to you.I assure you that this mistake will not happen once again and would appreciate very much if you could give me a chance to show my sincerity on this matter. Hope we can be friends forever.
Yours,
( )
()里写你的名字