https://my.auntminnie.com/forums/discussion/1-855-564-8074-how-to-check-in-delta-%F0%9D%90%80ir-lines-delta-check-in-guide/
https://my.auntminnie.com/forums/discussion/1-855-564-8074-how-to-check-in-delta-%F0%9D%90%80ir-lines-delta-check-in-guide/