||The departure and arrival airport codes, marketing carrier code, marketing flight number, departure date (in YYYYMMDD format) and cabin key, e.g.
BOS-DEN-DL-123-20990224-ECON. Note: Flight numbers with leading zeroes or alpha characters are not supported. For example, 0027 or UA27 must be formatted as 27. Also, be sure to use the actual departure date of the segment when constructing segment IDs. Often the departure date of the first segment is different from the departure date of the last segment in a multi-segment leg.
||One or more segment keys, delimited by
||One or more leg keys, delimited by