Sitter Job in Kansas City, Missouri

My husband and I are attending a wedding this Sunday and need a sitter for are youngest two. 19 month old girl and 9 month old boy. We have recently just moved here to kcmo (platte county) so all of our family and friends are back in the state in which we moved from. The time frame will be 2pm to 11:30pm August 31st. I have never made an ad or allowed anyone outside to sit my children before so it will need someone I can truly trust and well qualified. Children have no special needs. Just love and attention, dinner(which I will provide) and normal bedtime routine.