Hi jamal2008,
The short answer is, not at this time. The long answer is, that sometimes we offer additional guest tickets for purchase leading up to the ceremony. All tickets, including graduate ticket purchases, are sold on a first come first serve basis to make it fair for everyone interested. So it would depend on, if at that time, we had additional tickets that we could reallocate to the guest slots. But there is no guarantee of that, since we have a certain number of seats to work with and want as many graduates as possible to have the opportunity to participate in the ceremony.