If tickets were issued on the same day, it might be possible to void them without charges. If this is possible the "void ticket" button will be available in the "Request Emission" section in Revolution backoffice. In case of cancellation after midnight of the day the ticket was issued, the possibility of voiding depends on the purchased fare rules. This possibility can be checked at the time of booking by clicking "fare rules" button, or during the purchase process and also after the booking is completed in the summary table of the "branded Fares" (if available).Please note: it is not possibile to ammend flights for which check in has already been made, in this case check in will have to be cancelled before proceeding