49That passenger may thus invoke, before a national court, the failure of an operating air carrier to comply, first, with its obligation to reimburse the full cost of the ticket at the price at which it was bought, for the part or parts of the journey not made or no longer serving any purpose in relation to the passenger’s original travel plan, and, secondly, with its obligation to provide assistance, including its duty to provide information, under Article 8(1) of Regulation No 261/2004, in order to obtain compensation from that operating air carrier (see, by analogy, judgment of 31 January 2013, McDonagh, C‑12/11, EU:C:2013:43, paragraph 24). That compensation will nevertheless be limited to what, in the light of the specific circumstances of each case, proves necessary, appropriate and reasonable to remedy the shortcomings of the operating air carrier (see, by analogy, judgment of 22 April 2021, Austrian Airlines, C‑826/19, EU:C:2021:318, paragraph 73).
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