Mirage Buffet?

Can you use the dinner buffet & redeem it for the lunch buffet?? Thanks for any help.
I don't believe that this is a problem since lunch typically is less expensive than the dinner.
i think in general the quality of most all the buffets has went down significantly the past few years. we ate at cravings at the mirage in november for lunch and walked away feeling ripped off by paying for just one of them. we aren't foodies or food snobs, just was bland. one other note and i'm not sure if this is becoming the norm but you also get your own drinks.