 CouponNumber | The coupon number.Used for Numeric values, from 1 to 4 inclusive. |
| CouponReference | Coupon number, relative to total number of coupons (e.g., 10 of 12) |
| DocumentNumberCheckDigit | The number calculated by the check digit routine. |
| FlightRPH | A reference place holder used as a pointer to link back to the flight. |
| PaperTicketInd | Indicates whether passenger is using a paper ticket for this segment. If true, passenger is using a paper ticket to check-in for this segment. If false or unpopulated, the passenger is using an electronic ticket for this segment. |