https://developers.facebook.com/docs/messenger-platform/send-api-reference/airline-itinerary-template https://developers.facebook.com/docs/messenger-platform/send-api-reference/airline-checkin-template https://developers.facebook.com/docs/messenger-platform/send-api-reference/airline-boardingpass-template https://developers.facebook.com/docs/messenger-platform/send-api-reference/airline-update-template
https://developers.facebook.com/docs/messenger-platform/send-api-reference/airline-itinerary-template
https://developers.facebook.com/docs/messenger-platform/send-api-reference/airline-checkin-template
https://developers.facebook.com/docs/messenger-platform/send-api-reference/airline-boardingpass-template
https://developers.facebook.com/docs/messenger-platform/send-api-reference/airline-update-template