how do i use dots to space out text evenly (ellipses but longer)?

[beccalouise]

I am trying to make a program. This is what I am typing:

First part......................Person's name

But I want to make the "first part" be all the way at the left, and the
"person's name" all the way at the right of the page, separated by the dots.
And I want to make each line beneath it match up. I do not know what these
dots are called, not do I know how to do it!!

 

[Bob I]

Leader characters, see the following in Help.
Set tab stops and insert tabs that have leader characters