Excel formula help

I am looking to do a time card thing on excel where workers fill out their time on their smartphones. I have attached an example of what it will look like for clarification. I need the employee to be able to put a pin number in so we can verify that each employee filled out their own hours. My question is what kind of formula can I use to check that the pin goes with the employees name and then it gives me a "true, false" or something that tells me if the pin is correct?

Hopefully this made sense.

Thanks.

Attached Files

TimeCard.xlsx (10.2 KB)