Books with Witty Banter/Dialogue

Best witty couples, partners, duos, trios etc...

Any genre, any age group. I'm looking for great books that center around or have a great deal or witty dialogue, playful banter and flirtatiousness. Two examples that come to mind are "Pride and Prejudice" and "The Princess Bride". Please add your suggestions! I'm looking for some new books to devour!