Dear hiring manager.
I am a fresh graduate of 24 , with a high degree of self motivation, adaptability and learning agility, time management, dedication to duty, attention to details and above all having a willing mind to wor. 
I seek for the position of office assistant in your company/organization and i will glad if am given the opportunity . 
Thanks for your time and consideration and i look forward to hearing from you.

Yours faithfully
Prisca chiamaka.