I wouldn't get any bird for an office environment. They need attention, quite a lot of interaction. And birds aren't dirty, but they are messy and can be noisy. If this is a home office That's different, but if this is a company office, no way. I wouldn't want my Fred in that environment. He would be depressed and lonely. He loves the family environment.
I would suggest a beta fish. You can get beautiful plants with beta fish in the bottom of it.