 Since Samantha is bored with the city enough to rename it "Same York", Carrie invites her along to her book-signing, a long train journey to San Francisco- alas it s less of the Oriental Express then the New York Sub: tiny  de luxe  quarters and men who are faithful to their wives. Charlotte and her lawyer who dropped off the last divorce papers at her hard-kept place, which she now considers selling, end up having sex in his apartment. In Frisco, Carrie is mortified to be the opening act for a canine TV puppet, but finally finds a sex partner: Mr. Big, who came to hear about his  character  in her book.