rfid attendance system with fingerprint verification

hello guys,
I’m hoping to get some help on a project I’m undertaking. I’m building an rfid attendance system and so far I’ve been able to match the rfid tag id to names which are then logged to an SD card on an SD shield.
after the tag is swiped, the program proceeds to the fingerprint sensor where the user is required to verify his identity. I’m using an adafruit fingerprint sensor.
I’m wondering if there’s a way to match the fingerprint ID to a tag rfid tag ID. to ensure that not just any valid user with a print stored in the database can be used with any tag but a specific print to a specific tag. I’m attaching my code. it’s still a work in progress and I’m yet to clean up the code so please bear with me. I did a lot of tinkering as I’m still trying to get the hang of arduino. thanks

relay.ino (11 KB)