Mrs AusATC doesn't have a middle name, but a hyphenated first name (the second part of which she prefers not to use). Airlines do not like hyphens, so to make her name reasonably close to her passport, so for most bookings, we just drop the hyphen and make it all one word. As opposed to just using the first part she prefers. Her QFF account name is the same, but her VFF profile includes the hyphen.