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'
(..) would have made this conversation a lot easier. - Harry... - It's Mr. Osborn. We're not friends. Hi. You were his assistant, right? - What is your name? - Felicia.- Felicia. From now on, everybody at this table will explore? Felicia because Felicia works for me. Would anybody like to speak up?? (..)2014 The Amazing Spider-Man 2