Is there a token for "Email Name?"

I am looking to provide a bit more detail into the subjects of our tasks! The goal is that a sales team member can easily understand what a lead did through a quick glance at their activity record in SFDC. For example:  “Activity-Email Open [Tradeshow Name Follow Up]”

However, these types of activity tasks are centrally located, not within the individual program level. So I need to find a way to to tokenize that "[Tradeshow Name Follow Up]” part of the task subject. 

I'm thinking some potential options might be:

• The {{program.Name}} token: It seems like this might now work though since it gives the name of the smart campaign, not the program (instead of "Tradeshow Name Follow Up" it would be "02-Change-Status-Opened”)
• A token for the name of the local asset: So if the lead opens the "Tradeshow-Follow-Up-Thanks-For-Joining" email, then that will be what is tokenized and put into the task subject line

I'm not sure what solutions there are, but any help would be greatly appreciated!