Eavesdroping

Just overheard in the family room:

Calvin picks up a play phone and calls to me, "Mom, I'm calling Ethan's mom to see when he's going to school."

Now, what follows was a conversation with himself, of course, but he played both parts so beautifully that I need to name each character.

Calvin: Hi, Ethan's Mom? When are you taking Ethan to school today? Are you going when I'm going? This is Calvin Anderson.

Ethan's Mom: Calvin Anderson? Wow, that's a cool name.

Calvin: Thanks. What's your name?

Ethan's Mom: Cherith Anderson

Calvin: Cherith Anderson? That's my mom's name, too! Ok, see you at school.