A-one Electric  and solar ltd
Dear sir 
Greetings 
My name is ikenma Maryann and I saw  an advertisement of job on your company site that you have a vacancy for the position of office assistant in your company. This letter is regarding my interest in the same position.
I graduated with a degree from university of port harcourt. I have excellent track records and am confident in delivering an assigned job if I get the chance to work with your office.
I have attached a resume along with the application and and I am confident that I will live up to the expectations of your company.
I humbly request you to consider my application for the open position 

Regards 
Ikenma Maryann