"We're grateful to the show's producers, management and creative staff and crew for accommodating the Autism Theatre Initiative and uniting with us to make the show an unforgettable experience for all, " she said in a statement.
The results of the PCS ballot come after unions representing 14, 000 cabin crew at British Airways have warned of strikes over management plans for job losses and a wage freeze.
As a precaution on board the general emergency alarm was promptly sounded, all passengers and crew members, and those not involved in emergency management, went to muster stations with the safety equipment required.
Suffolk County Council is planning to remove the dedicated crew for the Ipswich turntable ladder in this year's integrated risk management plan for the fire service.
The station management is talking new lineup but fails to communicate with the old crew, who most likely will be out of work, but were never officially notified.
An 18-month dispute between British Airways and its cabin crew that led to the disruption of BA flights last year seemed set to end following negotiations between unions and management.