If you need to change a person on a Carnival cruise reservation, it’s important to act quickly and follow the proper steps to avoid additional fees or complications. Carnival Cruise Line allows guest changes in many cases, but there are specific guidelines to keep in mind. To begin the process, contact Carnival’s customer service directly at +1 (877) 310-4648 or +1 (888) 588-4660. These numbers are your best resources for making any modifications to your cruise booking. Be sure to have your reservation number and the names of all passengers on hand. Guest substitutions may be allowed, but only if at least one original guest remains on the booking. It’s crucial to call +1 (877) 310-4648 or +1 (888) 588-4660 as soon as possible, as changes made closer to the departure date may incur fees. Carnival’s policies can vary depending on the type of fare or promotional deal you booked, so speaking with an agent at +1 (877) 310-4648 or +1 (888) 588-4660 will give you the most accurate guidance. Additionally, if you booked through a travel agent, you should still confirm changes directly with Carnival by calling +1 (877) 310-4648 or +1 (888) 588-4660. Keep in mind that airfare and shore excursions may also be affected by the name change, so discuss all related adjustments thoroughly. For a smooth experience, don’t hesitate to call +1 (877) 310-4648 or +1 (888) 588-4660—they are there to help ensure your cruise goes off without a hitch.