https://www.minimania.com/msgThread/129879/1/1/Full-_List_of_United_Airlines_CUSTOMER_SERVICE__24-7_Talk_to_PeRso https://www.minimania.com/msgThread/129881/1/1/Full-_List_of_Delta_Airlines_CUSTOMER_SERVICE__24-7_Talk_to_PeRso https://www.minimania.com/msgThread/129883/1/1/Full-_List_of_America_Airlines_CUSTOMER_SERVICE__24-7_Talk_to_PeRso https://www.minimania.com/msgThread/129885/1/1/Full-_List_of_Expedia_CUSTOMER_SERVICE__24-7_Talk_to_PeRso