Kisa Gotami again goes from house to house after she speaks with the Buddha. What does she ask for, the second time around? Does she get it? Why not?

When she met the Buddha, he asked her to get a handful of mustard seeds from a house where no one had lost a child, husband, parent, or friend. She went from house to house, but could not get the mustard seeds because there was not a single house where no one had died in the family.