Passengers can regularly be seen being confused when searching for their seat reservations on TPE's core cross pennine services. TPE use multiple linked two or three car sets on these routes. It is therefore perhaps inevitable that sometimes passengers find themselves having got onto the 'wrong' part of the train and unable to get to their reserved seats. However, TPE add to this confusion by regularly not labelling their carriages and/or taking bizarre approaches to it. For example, on the Leeds-Hull service last night, a group of passengers were searching for their reservations in coach B, but no reservations could be seen. On asking the guard, they were advised that there were two coach B's in the train and that they were in the wrong one. On getting off the train, I checked the window labels. There were six coaches, some of which lacked any paper labels to identify them. Bizarrely, given it was a six car set, the middle two were labelled E and F! TPE can't help not having trains that can be walked through end to end, but they could at least clearly label them in a logical manner.