Dear Hiring Manager,
I am interested in the office assistant position advertised in your Organisation. I officially began working in administrative roles in 2014. I was a complete novice, fresh out of school and barely knew my left from right with working in the corporate world. 

But over the years, I've learned much about customer service and how to interact confidently and respectfully with clients. I've also mastered using computer packages like MS Word, Excel, and PowerPoint for essential document preparation and record keeping. I am also willing and able to learn new things, especially about solar energy systems, as our world needs renewable energy. 

With my experiences, I have what it takes to provide excellent office assistance services to your organisation. Thank you for the opportunity. I hope to hear from you soon.

Sincerely,
Kelechi Peace Nwankwo.