How do you write a warning letter to an employee for cash shortage?

Dear Ricardo,

On November 29, 2011 you reported a cash shortage of 49.99 and on November 30, 2011 another shortage of 110.03. After all checks were made by both of us, there wasn't any error found.

Since consistence you have handed over perfect balances, you are being excused this time of being applied the measures that need to be taken as per the standards of performance of a cashier.

Kindly be very careful when handling cash and try your best to avoid any distraction that might affect your job.

I'll look forward to your continued support and outstanding performance as in the past.

Sincerely,

Mrs. Teresita Guerrero

Sr. Administrative Asst.

BTL San Pedro