Previous process model data

Hi Team, I am stuck at one point. If possible, please give your opinion.

Requirements:

1. I have a process model with a user interface. First, I started the process model and filled in some data, but I discarded the process, so the current process ended. However, the next time I trigger that process model, it should show the previously filled data, even though it was not stored in any database, as I discarded it in the first instance