Familiar Name, Unfamiliar Lady

The name of my goddaughter’s mother is Leena Korhonen. Today my daughter’s friend from kindergarten was visiting us for the first time. Her mother brought her to our home. When I opened the door she introduced herself to me as Leena Korhonen. I was perplexed for a moment, although she reminded not at all the other Leena, and I am well aware that people can have identical names.