If you want to use the booking calendar from your smartphone, it is highly recomended to install the Teamup app for iOS or Android.
Once you have the app installed, get started with these steps if you have a booking link. No login is needed.
If you have a Teamup user account or create one, you can login and access your booking calendar from any device. If you don't see the AM23 calendar in step 3 below, you'd need to add it to your dashboard.
There will be many Reserved entries on the calendar. You can toggle to show one room at a time to see the availability of that room at a glance, then choose the best possible slots for your needs.
You may want to see your own bookings on one view. You can do so by filter for your organization name as demonstrated here:
Switch between List, Day and Week views to see availability in different styles.