Awww, I have conflicting emotions about this!
On the one side I am so thrilled that Ernie is reunited with his owner! It must have been so special for the lady to finally see her Cockatiel again!
On the other side I was so happy that you got another fid to look after. You are such a great parront! Any bird would be so fortunate to be in your care!
Did the lady happen to mention what Ernie's real name is?