Overnight Nanny/Sitter Wanted

Single Mom of 2 in Williamsville. Boy age 11 and girl age 7. Looking for a regular and reliable sitter/part-time overnight nanny. My son (11) is pretty self-sufficient and loves Legos and video games. My daughter (7) loves the 1:1 attention and needs somebody to play games, color/draw with her, take her outside, etc. I travel to Canada often, sometimes overnight. I am hoping to find somebody who is open to evening/late night or even overnight care. Am willing to discuss all those details if we connect. Most of the time, the kids will be asleep! East Amherst/Williamsville area right off Transit Rd.