If the traveler pays with a personal credit card, a Travel Voucher must be used to request reimbursement after the travel has occurred. Personal travel arrangements must be charged to a personal credit card, or paid by check or cash. E-tickets are used when travel is on a single carrier with no more than four flight segments. E-tickets avoid the possibility of lost tickets. There is no physical ticket, only a record in the computer.
Photo identification is required at check-in.
Curbside baggage check-in, or going directly to the gate with carry on luggage only, is still possible in major airports. Preassigned seats are still available. Tickets at low fares must still be ticketed the same day the reservation is made. E-ticketing does not extend this deadline.