Redirect after Logon Page

Hi all, this is my first post so I apologigise if I make any errors. My customer needs a portal dedicated only to the password change procedure. I tried to create a virtual server with a logon page and it works. The problem is that I need to change the landing page when the user is coming from the change password page. For example user John access the portal without changing password and it goes to the backend portal after insert his credentials, instead user Mary need to change password and after that she should be redirected to a dedicated page where confirmation and other information are shown. Is there a way to accomplish this?

Thank you in advance

Luca