https://www.devex.com/people/do-i-need-to-carry-a-separate-seat-to-fly-with-a-baby-on-delta-airlines-2379814
https://www.devex.com/people/the-easy-way-to-add-an-infant-to-an-award-flight-most-of-the-time-2379946
https://www.devex.com/people/can-i-add-a-lap-child-to-an-already-booked-flight-2379960
https://www.devex.com/people/how-to-add-a-lap-infant-to-your-delta-flight-2380198
https://www.devex.com/people/what-happens-if-i-don-t-select-a-lap-child-seat-on-delta-2380286