Update app.py

app.py

@@ -30,7 +30,7 @@ def has_system_availability(schedule_data, class_selected, day_selected, start_t
         (schedule_data['Day'] == day_selected) & 
         (schedule_data['Start Time'] == start_time_selected)
     ]
-    if len(bookings) >= 6:
+    if len(bookings) >= 3:
         return False
     elif system_selected in bookings['System'].values:
         return False