She tried her best — both to comply with the sharp demands from the flight attendant that she mask her 2-year-old daughter and to console the upset toddler.

Another passenger recorded the harsh words of the flight attendant to the young single mother: “If (the toddler) can’t wear a mask, then she shouldn’t travel with you.” She tried a bottle. The flight attendant came back and demanded that the toddler’s mask go back on between sips. Eventually, the plane took off — 40 minutes later and without the mother and child.