https://travel-help-center.odoo.com/blog/our-blog-1/ways-to-connecting-delta-customer-service-via-phone-email-or-chat-options-full-steps-guide-1

https://travel-help-center.odoo.com/blog/our-blog-1/ways-to-connecting-delta-customer-service-via-phone-email-or-chat-options-full-steps-guide-1
https://travel-help-center.odoo.com/blog/our-blog-1/ways-to-connecting-delta-customer-service-via-phone-email-or-chat-options-full-steps-guide-1
https://travel-help-center.odoo.com/blog/our-blog-1/ways-to-connecting-delta-customer-service-via-phone-email-or-chat-options-full-steps-guide-1