Chloe's conversation with Grandpa

(To set the stage...Grandpa and Chloe were playing with letter blocks and Grandpa was quizzing her about whose name starts with _____.)

Grandpa: Who's name starts with this (D)?
Chloe: DADDY!
Grandpa: What letter is this?
Chloe: H
Grandpa: Do you know whose last name starts with H?
Chloe: .....no
Grandpa: What's Grandpa's last name?
Chloe: Goose