Add to a name an Alias or Nickname to Teams phone (or teams calling?)

Hi, 

If you setup the Auto Attendant and tell it to directory search by name.  You might want to give nicknames or alias to some of your staff, for exemple, I have a single person in accounting, and her main email is "accounting" some user call her and say "accounting" other use her real name (in her signature) "lily"  since her name in AD is "Lily" lily works but not accounting. 

in other cases some customers have complicated forein first or last names and they use a second simpler name but the real name needs work as well. 

anyone know how to do this?