Order of the Court (Eighth Chamber) of 10 March 2023.#Eurowings GmbH v flightright GmbH.#Request for a preliminary ruling from the Landgericht Düsseldorf.#Reference for a preliminary ruling – Article 99 of the Rules of Procedure of the Court of Justice – Air transport – Regulation (EC) No 261/2004 – Common rules on compensation and assistance to passengers in the event of denied boarding and of cancellation or long delay of flights – Article 2 – Concept of ‘operating air carrier’ – Flight booked through a tour operator – Allegedly non-existent flight.#Case C-607/22.