How do I transfer an Acrobat serial number from one adobe account to another?

I've installed Adobe DC Pro on one of our user's computers. When it asked for an Adobe ID I entered the ID I used to purchase the serial number. Unfortunately now acrobat always starts on the new computer and displays my name instead of the end user name. So I'm wondering how to either transfer the serial number to the end user's adobe account, or alternatively re-associate the acrobat on the end user machine with the end user's own adobe account.