Hi,
The main goal of HikaSerial is to generate unique data.
You can generate your serial using a specific algorithm. The algorithm could create key which would depend on the "6-char seat number".
You can generate random serials and associate extra data during the order.
With HikaSerial web-services, the software could check (and consume) the serial.
HikaSerial could generate more than a simple text serial, it could create files too and update the HikaShop order (in order to add a downloadable file for example).
So yes, HikaSerial can help you to do this, I see several possible implementations but I am not sure which one would be the best for you and your current software implementation.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.