I ran into this exact situation when I accidentally booked a ticket under my nickname instead of my full legal name. I wasn’t sure if Air Canada would allow a name change, so I called them at 877-764-3622. The rep explained that minor corrections are usually possible, but full name swaps can depend on the ticket type. They walked me through my options, checked fees if any, and helped me update the booking without too much hassle. Honestly, having someone on the line made it so much easier than trying to figure it out online. If you’re in the same boat, I’d suggest calling that number—it saved me a lot of stress and ensured my ticket was correct before my trip.