Deleting Data From A Report Using Form

I have a project that was given to me because I have previous experience with MS Office, but my level of Access experience is somewhat below par. Here is my problem: We are using one form (Enter Required Training) to create a row of data that goes to a report to let us know when employees need to be trained by.

This report is called 'Past Due - Required Trng'. When employees have completed a training course we go into a form called 'Enter Training Attendance' to update another report to show that they have completed training. However, once employees have completed a course, we have to manually go to the database where the required training courses are stored to manually delete them so that they do not show up on the report.

My boss would like me to find a way to automatically delete the required training information without having to manually delete them each time. Is it possible to have the 'Enter Training Attendance' form delete the record created by the 'Enter Required Training' form so that it does not show-up on the report once completed? I have been messing around with the datasheets, events and even formatting but I can't seem to get anything to work.