Ad Manager Plus - Cutome Script - Passing variables in VB script when creating new user

I have written a custom script to send email notification to user, when account is created. Its working fine. I'm passing 3 variables to script as mentioned below:

cscript C:\ManageEngine\email.vbs %userName% %givenName% " vluthra@casey.vic.gov.au"

1.    User Name: Auto populated while creating user. No manual Input required
2.    Display Name: Require Manual Input. (example – John Wick)
3.    Manager email: Require manual input (example – JWick@casey.vic.gov.au)

And this is command I use at custom script
cscript C:\ManageEngine\email.vbs %userName% "John Wick" " jwick@email.com "

can I replace Display name with dynamic field like %displayName% or something and email with %manageremail% something