This is a set of pre covid flights that have kept rolling over.
The booking is for 2 adults + 2 children, so the name change must be a like for like swap. Eg Adult ticket for another adult, child ticket for another child etc. (I have checked this with easy jet and this is the case)
The booking also includes luggage 3 x 23kg and seat reservations (easyJet’s systems has moved these over automatically)
Outward flight reservations are (1D, 1C, 1E, 1F) Inward flight reservations are (3E, 3F and 2E, 2F)