What is the traditional passenger ticket information

The ticket issuer coupon, the accounting coupon, the passenger coupon, the flight coupon. The traditional paper ticket consists of "a statement of four coupons (ticket issuer coupon, accounting coupon, passenger coupon, passenger coupon)" a book. The traditional way of extracting the ticket is that the passenger brushes the ID card on the self-service counter, and the system extracts the ticket according to the passenger's ID number.