Is there a way to access personal webinar links?

We do trainings on a product through the webinar feature and often people we are training will send each other the confirmation link they got to join. Sometimes this is because the email is sent to spam sometimes and someone else in the same organization will send them their personal link. Then we end up having multiple people with the same name in our trainings and we can't track accurately who has been trained. Is there a way we can have access to the personal links so we can send it to the specific people the day of training to make sure they get on the webinar through the correct link?