Dear Sir/ Madam, 
I am writing to express my strong interest in the position of an Office Assistant in your company. I am confident that I am a strong fit for this position.

 I have good communication and interpersonal relationship skills, and I am good at paying attention to learning effectively, and I believe I can add value to your company.

Thank you for considering my application and I look forward to hearing from you.

Your's Faithfully, 
Njoku Sylverline.