To space or not to space, that is the question. And yes, some GDS flavours or airlines automatically remove any spaces anyway- for example UA: I could enter LAST NAME III/FIRST MIDDLE MISS in Amadeus and see that in the Amadeus PNR - but the UA PNR, and Amadeus issued ticket, will show LASTNAMEIII/FIRSTMIDDLEMISS. No spaces for UA. Ever.
The PNR in the OP should have been perfectly fine, with any variation of:
LASTNAME/CLAIRELOUISEMISS
LASTNAME/CLAIRELOUISE MISS
LASTNAME/CLAIRE LOUISE MISS
LASTNAME/CLAIRE MISS
LASTNAME/CLAIREMISS
LASTNAME/CLAIRE
Hopefully it wasn't literally LASTNAME/MISSCLAIRELOUISE as that really would have been wrong.
It all comes down to airlines having limited fields to store name information:
$LASTNAME
$FIRSTNAME
…which are always paired and stored as LASTNAME/FIRSTNAME
The bare minimum data needed for these fields are those values from the passport/ID. The simpler the better.
If someone really wants to enter LASTNAMEJUNIOR/FIRSTMIDDLETHIRD TITLE they can, but it really isn't needed and can cause problems. The extra stuff can go in $SSRDOCS which is where Advance Passenger Information goes (immigration, US secure flight, etc.) and looks like:
SRDOCSBAHK1-----01AUG82-M--LASTNAME-FIRST-MIDDLES
or, with passport:
SRDOCSBAHK1-P-GBR-123459789-GBR-01AUG82-M-01JAN30-LASTNAME-FIRST-MIDDLES
…and ALL of this is sent to the airlines and immigration authorities as:
$SSRDOCS/$LASTNAME/$FIRSTNAME
CX is another airline that require the middle name, and they want it in the $FIRSTNAME field. Awkward, as BA doesn't usually collect it…Even if it is stored within $SSRDOCS in a profile, Amadeus doesn't use that data to populate $FIRSTNAME.
Salutations are fine, and really don't affect anything (as long as not entered
before the names).
I actually prefer seeing titles; it's more courteous, and staff know whether to address you as Mr. Reed, Mx. Reed, Dr. Reed or Sir Mike... (
https://www.flyertalk.com/forum/brit...d-mr-evil.html)