Https://docs-ethiopian-airlines-help-center.github.io/connect/en/us/41-ways-to-reach-ethiopian-airlines-customer-service-by-phone-number-chat-and-email-step-by-step-helpful-guide/ https://docs-all-nippon-airways-helpcenter.github.io/travel/en/simple-guide-to-contact-all-nippon-airways-customer-service-by-phone-email-or-live-chat%E2%80%8B