Original Member and FlyerTalk Evangelist
Join Date: May 1998
Location: Kansas City, MO, USA
Programs: DL PM/MM, AA ExPlat, Hyatt Glob, HH Dia, National ECE, Hertz PC
Posts: 16,579
The confirmation number comes from a computer reservation system (CRS), just like if you made the reservation on the hotel's website or Expedia or Travelocity or any other website. There is no human intervention involved in the process, it is completely automated.