a dental 'assistant' [=a person whose job is to help a dentist]
She works as a 'sales assistant' [='salesclerk'] at Macy's.
a wealthy executive who has a personal 'assistant'
(..) Tom, say what's up. - What's up? - Wow! Oh, no! And this is our personal assistant, Billy... ...who is supposed to wait up on the wire. Bolt, I've been admired you such a long time and there is something I always wanted... ...to tell you if I ever get (..)2008 Bolt