Hermoine is a main charater in the Harry Potter series - the smart girl who is one of Harry's best friends. Her name is pronounced HerMOYnee.

Sadie, of course, rhymes with Lady, and is a good name to call out - two syllables, ends in eeee. So a simple choice for a dog name, and I don' know any human girls named Sadie, so that's better than some names.