another interesting integration point, calendar integration, with TS, it should not be difficiult to integrate a token with calendar. for example our ticket.
Depends on the level of integration though.
Easy if you have a ticket and you click the calendar entry of that ticket to display a token card which gives the QR code for entering the venue. People hate switching apps. This will allow them to enter the venue from where event notification is.
A bit more difficult if you have a ticket which, upon receiving the event organizer's notification (an attestation), changes its slot. Or if an airline ticket is cancelled, its calendar entry is automatically removed.
Even more difficult if you extend a 1h event to 2h and automatically create a transaction to buy more time (consider a patron-escort situation, or the case you prolong a payment channel)
The most difficult to tokenise is an invitiation with flexible dates. Let's say a doctor tokenising his free time, and a patient purchases one slot. Both needs to find a common slot from each other's calendar without knowing in detail what is on the other person's calendar (not even a free/busy calendar since that gives away privacy) Some cryptographic protocol would be needed.