Click on List box and move to that record in the form

I have a single form which will be used for users to clock in and out. On the
form I have a list box showing the completed clock-in's and another list box
with incomplete clock-in's. I would like to have the user be able to select
their name from the incomplete clock-in and have their record load so they
can clock out. I've tried to find the solution, but can't quite find it.

Thank you,