https://www.goodreads.com/quotes/13939463-how-to-add-infant-in-lap-united-airlines-open
https://www.goodreads.com/quotes/13939480-how-to-add-an-infant-to-your-united-airlines-reservation
https://www.goodreads.com/quotes/13939506-how-do-i-add-infants-to-united-airlines-flight-open
https://www.goodreads.com/quotes/13939519-how-to-book-a-ticket-for-a-lap-infant-on