Updating a Field based on another fields selection on a recrod

I’m trying to limit my teams input on record creation. on my records I have two fields one is called “LinerType” and is single select and the other is called “Liner” and is also single select.
I want to make an automation or something so that when “LinerType’s” selection is “N/A” it automatically makes the field “Liner” to be selected as “N/A” as well.

Basically I believe this amounts to being a conditional statement maybe?

when LinerType = "N/A" then Liner = "N/A"