If you look at the online program for Big Data Ignite 2019 you will see that each session includes a little + icon.  If you click on that icon, you can add the session to your very own personalized Big Data Ignite planner.  The first time you will be asked to create an account (or login to your previously created account) so the system can keep track of your sessions for you. Simply provide your name and email address and you are good to go.

The items you select will now show up on your “Personal View”, helping you remember which sessions you wanted to attend.