A confirmation letter

Dear Ninh,
In a few days my school will have a quick quiz, the theme of a game is wildlife.
I want to win that game, so I need to have an adequate amount of knowledge. Can you lend me a book about wildlife?
If you agree, i'm coming for the book at 9:00 a.m this Saturday. Is the time convenient for you? Please answer my letter
Yours
Qui??

Dear Qui,
I'm glad to hear that you will join a contest.
Wildlife is a interesting theme. Certainly, I will lend you the book that you need
Unfortunately, I'm not free at 9:00 a.m.
I will waiting for you at 9:30 a.m that day.
Wish you victory
Love
Ninh❤