How to get requestor manager name in watchlist. Using flow designer script.

[User267]

I need two persons names in my watchlist. One person is (so and so alias id) so i have written code for that.

var nameString = '';

var gr = newGlideRecord('sys_user'); gr.addEncodedQuery('alias id'); gr.query();

• while(gr.next())
  {
  nameString += gr.name +',';
  } nameString=nameString.substring(0,nameString.length-1);
  return nameString.toString();

Now I need script for requestor manager name.

So when someone opens my catalog item then in watchlist there manager should be visible.

For example if i open that catalog form then my manager name should visible in watchlist. Need script for this.