Case C-163/18: Judgment of the Court (Third Chamber) of 10 July 2019 (request for a preliminary ruling from the Rechtbank Noord-Nederland — Netherlands) — HQ, IP, legally represented by HQ, JO v Aegean Airlines SA (Reference for a preliminary ruling — 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 — Flight cancellation — Assistance — Right to reimbursement of the cost of the air ticket by the air carrier — Article 8(2) — Package tour — Directive 90/314/EEC — Insolvency of the tour organiser)