Al was a hologram in the Vic Fontaine 1962 Las Vegas holoprogram. He acted as a countman (a person in a secure area who counts the money taken in by a casino) in the hotel where Vic performed his act. Every evening, Al invariably left the count room and used a public telephone to call home for six minutes.
Al's routine was interrupted in 2375 and his time away from the count room extended by Julian Bashir's participation in the holoprogram. During that program's run, Al also ogled Kira, much to the annoyance of Frankie Eyes. (DS9: "Badda-Bing, Badda-Bang")