Can I change the dates of my flight? Giamso Tours does not handle ticket modifications. Please cancel and rebook (The ticket will have to be cancelled and a new ticket will have to be purchased) or contact the carrier directly. Was this article helpful? Can't find what you're looking for? Inquiry Form Related articles Can I modify my air ticket? Can I change the dates of my flight? How do I cancel my flight reservation? What should i do if I made a change/refund with the airline directly? Is it possible to transfer my airline ticket to someone else?