Case C-253/21: Order of the Court (Ninth Chamber) of 6 October 2021 (request for a preliminary ruling from the Landgericht Hamburg — Germany) — TUIfly GmbH v FI, RE (Reference for a preliminary ruling — Article 99 of the Rules of Procedure of the Court — Air transport — Regulation (EC) No 261/2004 — Article 5 — Article 7 — Article 8(3) — Denied boarding, cancellation or long delay of a flight — Compensation and assistance to passengers — Concept of ‘cancellation’ — Diversion of a flight to an airport not serving the same town, city or region as that for which the booking was made — Re-routing of passengers by coach)