one car (with four people) = one space
one car (with one person) = one space
four people on plane = four seats
... however,
one person on plane = only one seat
simples
one car (with four people) = one space
one car (with one person) = one space
four people on plane = One Transaction
... however,
one person on plane = only one Transaction
simples
You see we can both validate our argument simply by filling in the blanks as I've done above. A booking fee is a fee for a transaction. Why charger 4 times if it's just one transaction? That is my point.