Could you please help me to check out the book ?   Sure , what's the author's name , please .   I can't remember that clearly . It probably be Charles ...   Charles Dickens ?   No , no , no . I'm not interested in literature .   OK , do you know the title of the book ?   Oh , sorry . I'm always absent-minded . I remember that I've put a note in my pocket .   So , show me the note please .   I can't find it now .   Oh , such bad luck , sir . Can you please name the category of the book ?   Let me see . It's not fiction . It's biography . 