[LEAVINGDAY:+1day] - offset from check-out / Abreisetag plus/minus x days
[DAYSTOCHECKIN] - number of days until Check-in / Anzahl Tage bis Check-in
[NUMNIGHT] - number of nights / Anzahl der Nächte
[NOTESBR] - notes with line breaks <BR>/ Notizen mit Umbruch
[GROUPNOTE] - group note / Notiz zur Gruppe
[MESSAGE] - the content of the booking message field