Provide the theme summaries for the following conversation: 

Dina: Can I borrow from you a book?
Selma: Which one?
Dina: The newest Sparks
Selma: oh, I didn't read it yet :(
Dina: oh, that's a shame. I really wanted to readi it...
Selma: I have one more book to read befor I start this one so if you can finish by the end of the week, u can borrow it :)
Dina: Thank u, I'll give it back on time, no worries

Summary: 
Selma will lend Dina the new Sparks' book. Dina will have to finish it by the end of the week, as Selma wants to read it too.