#Person1#: I am sorry, but I can't find the book you lent me.
#Person2#: That's OK.
#Person1#: I really feel bad about it. Let me buy you a new one.
#Person2#: No. Don't be silly. I wouldn't dream of letting you do that.
#Person1# apologizes to #Person2# for losing #Person2#'s book.
apology