Historical clue formulations

• Enterprise enterprise — 2025-09-27
• Dollar, for one — 2017-02-18
• National service — 2008-10-03
• Alamo mission? — 2007-02-25
• Airport convenience — 2004-12-22
• National service — 2004-07-17
• Traveler's need, perhaps — 1997-11-01
• Escort service? — 1997-08-16
• Business traveler's booking — 1996-02-22