I must confess my American ear. In dialectal English, one might hear "cheers," "sure," "not at all," "don't mention it," "my pleasure," "no worries," "thank you," or even "you're welcome." Interestingly, the Americanism "you're welcome" is labeled as "upper class" and I suppose an affectation in Great Britain. Still, I feel condescended when my thank you is met by your thank you. Or maybe I just feel old. I appreciate all your contributions to enhance the value of WikiTree.