Source: Elines 

As we all know, since the grounding of the 737 MAX 9 fleet, the company has been altering aircraft schedules to adjust for the removal of this aircraft from service. We’ve felt the impact of these changes in our monthly schedules, some of us more than others.No one knows exactly when the FAA review will be complete. As a result, the company has announced they will pull MAX flights out of our schedule through early August and will make schedule adjustments based on developments with this fleet of aircraft. By excluding this aircraft from the schedule development process, we expect this will reduce the impact on Flight Attendant schedules and reassignments.