Hi Macy,
I use a few datatags in my confirmation email that would be similar to what you are trying to accomplish. In the body of the email, I include the following:
View or Modify Registration (hyperlinked to {[E-MY REG URL]} datatag)
View or Print Invoice (hyperlinked to {[E-INVOICE URL]} datatag)
You could take the same concept and include "Cancel My Registration" hyperlinked to the {[E-UNREGISTER URL]} datatag. You will want to make sure your registration settings allow for self-cancellation as well. (I actually just tried this to make sure it would work and am now going to include this in my email footers - thanks for the idea!)------------------------------
Heather Darrow
Conference Coordinator
Cornell University - Department Of Animal Science
------------------------------