Her eyebrow raised just slightly, the boy was not a person that she recognized as someone who either she or her sisters when to school with. So her brain calculated he had to be from the future, which only made her lips curl into what had to be a smile...at least for Bellatrix.
"I have tired of mingling, so a dance sounds nice yes." She held out her hand waiting for him to lead her, she was a lady after all.