dear mr. smith,
ms. maria of your company has told me that your depart. needs a manager assistant, and i want to apply for the position. i graduated from the university of business and economy last year. my major is human resource and some experience in business has prepared me for the work you are calling for.
i am really interested in learning business practice. i will try my best to be a diligent worker and a fast learner. if given a chance, i am sure i can prove my worth in your company.
i will be available during the weekdays in the morning for any interviews you may want to give. enclosed is my resume, and hoping for your immediate reply.