Originally Posted by YOWCDNFF

a) the first flight on which space is available (fairly straightforward)
b) the flight that will provide for his earliest arrival at thenext intermediate, junction point or destination as the case may be

...and then it talks about the fact that it will not be considered a stopover regardless of what you do if you depart within 4 hours

Where I get confused is in the language used in b) (and I have read both English and French versions) and what this actually means...