Write a confirmation letter

Dear Tho,
I want to borrow a book about wildlife. Can you lend me?
I will coming for the book at 9.00am this Saturday. Is the time convenient for you? I will return you next week.
Yours,
Vy.

Dear Vy,
I’m glad to hear that you are going to borrow my book.
Of course. I will give my book for you but this Saturday, I will go out with my family. If you want to borrow my book, you can go to my house next Monday at 7.00pm. This time i will be at home.
I will be waiting for you at 7.00pm at my house next Monday.
Love,
Tho.