How to have Diferrent States for Different Customer?

[shanmugangirish]

Hi,
I have a requirement of having different states for different customers?
May i know how that can be achieved?
For Eg:

Customer 1 should have :-

new->Assigned->Inprogress->Close


Customer 2 sholud have:-

new->open->inprogress->resolve->close


Note: Both are having diferent queues.

Thanks for your Help ....