What is the booking number composed of?

The booking number is composed of the trip number and the number of the bid booked.

Here are the 3 possible types of booking number:

1. 6545-78456 (trip request no. 6545 - bid no. 78456)
2. 6545-78456A (the letter A refers to the booking number of the way-in transfer associated with a return transfer)
3. 6578-78456R (the letter R refers to the booking number for the return transfer, associated with a way-in transfer)