Case C-11/23,  Eventmedia Soluciones: Judgment of the Court (Third Chamber) of 29 February 2024 (request for a preliminary ruling from the Juzgado de lo Mercantil nº 1 de Palma de Mallorca – Spain) – Eventmedia Soluciones SL v Air Europa Líneas Aéreas SAU (Reference for a preliminary ruling – Air transport – Regulation (EC) No 261/2004 – Article 5(1) and (3) – Article 7(1) – Compensation to air passengers in the event of cancellation of flights – Nature and basis of the right to compensation – Transfer to a company of the passengers’ claim against the air carrier – Contractual clause that prohibits such a transfer – Article 15 – Exclusion of waiver)