Name Already in Use

Hello! I have a question and haven't been able to find an answer that had been posted in the past so I thought I'd ask now.

I plan on bringing a new character onto WOLF, but the name I want to give the character has already been taken (Finn). However upon searching up the account currently using the name, I found that it has been inactive for 3-4 years.

Is there anything I can do about this? Any suggestions for naming characters to get around this issue?