Switch from option list to a button click

I’m stuck
I had someone create an option list that clients can use to select an employee. I want to remove the option list and have a series of buttons that a client will click to select an employee. The app has 5 pages. The second page allows the client to input their name. The third page allows the client to select an employee. The fifth page completes the sign in process and displays the waiting list. Everything works on the fifth page except the name of the employee does not appear. I know that the selection was mapped to an option list, but I’m not sure how I can capture the employee name.

Any suggestions will be appreciated