属性

数据类型ID

必须?Optional

长度Max 1

Codes (12)

• 1System Reference
• 2Confirmation Reference
• 3Related System Reference
• 4Fare record information identification
• 5PNR status value
• 6Customer ID
• 7Client reference
• 8Invoice reference
• 9Ownership Reference
• BBooking system
• QQuerying system
• RResponding system