Where can I find the booking reference/PNR?
eTicket
If you received an eTicket via email, your booking reference is the six character alphanumeric code that appears to the right of the 'BOOKING REFERENCE' field. It will begin with B, C, D, E, F, G, H, I or J.
eTicket (airline printed receipt)
On your flight coupon / ticket, your PNR is the first six alphanumeric characters printed toward the left as shown in the illustration below.