To allow participants to view any bookings made for them in the event, you need to add the booking section to the event landing page:

1. Click Build event page on one of the main pages
2. Click Add section
3. Choose a section type: Bookings
4. Make sure that the section is Visible to participants with the toggle on the right

This creates a section for their bookings to and from the event.

If you want the participants to see the bookings made by their colleagues, make sure to turn on All participants can see all individual bookings made for the event.