language barriers – translator, interpreter or escort might be needed if they don’t speak the language
disabled passengers – wheelchair waiting for them at the airport, priority boarding, staff assistance, MAAS
elderly passengers – buggies to help moving around with luggage, front seat protection, MAAS
young passengers – under the age of 16 they need to be escorted
mother with infant – one infant one escort/parent, two infants two escorts/parents, bassinet, early boarding, staff assistance