2 or More Different Cart

Can I have 2 different carts in CodeIgniter?
Because I am using cart for Product Orders, and I will be using another cart for Product Returns. I want to specify the different carts so that there will be different sessions. How can I specify the specific each cart?

I don't want the "Return Cart" will show the data of "Orders Cart", since they will definitely have the same session. That is why I wanted to specify the Carts so that the session data will differ.

I hope anyone can help