Why does Carl call Washington? [br] [originaltext]Hi, Washington, this is Carl

Hi, Washington, this is Carl speaking. Have you finished reading the book that I lend you a month before? The book is borrowed from my cousin. He borrowed the book from our college library and had to return it before this Saturday, September 15. If it is convenient, would you like to return the book for him to the library? If you are busy, you can contact me. Sorry to disturb, thank you.