https://support.google.com/edu/classroom/thread/335199557?hl=en&sjid=11445308492238211481-NA

https://forum.dimensionengineering.com/topic/29963-top-ways-to-contact-lufthansa-airlines-for-flight-reservations-and-refunds/

https://forum.dimensionengineering.com/topic/29960-ways-to-speak-with-a-live-agent-at-lufthansa-airlines-for-immediate-assistance/

https://forum.dimensionengineering.com/topic/29959-lufthansa-airlines-customer-support-most-effective-ways-to-get-help/

https://forum.dimensionengineering.com/topic/29958-ways-to-reach-lufthansa-airlines-via-phone-email-and-live-chat-for-assistance/

https://www.goodreads.com/quotes/12706852-help–24-7-how-do-i-get-a-human-at-expedia

https://www.goodreads.com/quotes/12706849-help–24-7-how-do-i-get-a-human-at-expedia

https://www.goodreads.com/quotes/12706836-help–24-7-how-do-i-get-a-human-at-expedia

https://www.goodreads.com/quotes/12706823-help–24-7-how-do-i-get-a-human-at-expedia

https://www.goodreads.com/quotes/12706820-help–24-7-how-do-i-get-a-human-at-expedia