Most people try to get this job simply because it is convenient, offers routine duties and clean working environment. And a decent salary of course…

Well, we naturally apply for a job to earn money (nobody would work full time for free). But earning money should not resonate in your answer.

Oppositely, you should try to convince the hiring manager that you really want to have this job. Motivation is crucial for every administrative assistant, do not forget on it. If you want to get hired, you can't look like someone who takes this job as a last option only.

Sample answer:

Each of us has some preferences. Speaking honestly, I never wanted to have a job when one deals with new challenges every day, manages the others and is responsible for making major decisions. I prefer to have my job in an office, being focused and knowing always what to do and what action to take. Therefor, I am looking for an administrative job.