Historical clue formulations

• Cheerful response after helping — 2019-02-15
• "I'd be delighted!" — 2011-07-09
• "My pleasure" — 2011-06-18
• "My pleasure!" — 2010-01-27
• "My pleasure" — 2008-03-10
• "No problemo" — 2000-02-05
• "My pleasure!" — 1997-12-31