Maybe Redford's character didn't have field training, but he still had Robert Redford's seduction super powers. Most of us mortals wouldn't be able to kidnap a random woman and convince her within 24 hours to assist us in our espionage efforts.

Edit: That movie has one of my favorite all time closing credits. I love the way Redford slinks off into the crowd of Christmas carolers, and the picture freezes on Reford's worried face, the holiday music cuts out, to be replaced by the ominous, very 70s piano notes.