Connect local user to apple id
I buy the Macbook air from a shop(Hong Kong),and the guy help me to setup every things,and he just let me set up the name and the password,and now i want to connect the apple id to my local user,but i can't find the option to connect the old users,but i find the way to connect is to create a new user,but i don't want to do it,do you guys having an other way to help me?
THANK A LOT!!!!!!
PS:New to mac family~~
MacBook Air, OS X El Capitan (10.11)