Someone/Somebody wants to talk to you. Now, if you'd like to
refer to someone/somebody, then you normally use the subject
form they, the object form them, or the possessive determiner
their: A: Mrs Patterson, someone wants to talk to you. B: Did
they not tell you what they want to talk about? B: Alright then.
Bring them in. We don't want to waste their time, do you? - For
Teachers