Sir,
I write to cordially apply for the position of Office   Assistant in your esteemed organization sequel to your online publication of vacancies.  I am an indigene of Rivers State and hails from Emohua in Emohua local Government Area. I pledge to assist the organization achieve its set goals. As an Accountant, I wish to remain prudent and law abiding in the course of discharging my duties. I have attached my resume for your perusal and consideration 
Thanks and best regards
Emeka Uchendu