I went inside an elevator at my work
Why did you get in the elevator?
I was there for a job opportunity; I was excited.
It is exciting to get new job opportunities, and it is always good to arrive to them on time. Taking an elevator is a good choice when you want to arrive at work promptly.
Haha, yeah, but the job just wasn't for me.
I'm sure the place appreciated your enthusiasm.  You'll find a job you love soon enough.