Alert case owner about reply to notification

Hi!

I’m newbie in SuiteCRM, so i’m sorry if my question is stupid.

I need to setup the next process: if case funder replies to notification, system should notify case owner about it. In other words:

  1. user A created case with user B as funder
  2. system sent email alert to user B
  3. user B replies to that alert, and system assigns that reply to case
  4. system notifies user A that there is update in his case

How can i do this? Do i need to write the code, or it can be done via workflows (or other settings)? Thanks very much.