Part of being professional means being punctual at all times.
When you apply for a job you are saying “yes I can work this job, all dates, all hours”. When a client browses the applicants they also assume you are 100% available if you applied.
When working events, there just isn’t room for excuses. If you are late or no show, you let down your entire team, the client and you ruin your chances of ever working again in the event staffing industry.
You have to plan ahead, manage your time and set your alarms so that you arrive to the event early and ready to work.
If it is absolutely necessary for you to cancel after being booked for a job, make sure you do this 48 hours prior and in writing via email to your Account Manager and then wait for a reply. If you don’t get a quick reply, call your Account Manager and make sure they know and tell them why you are cancelling.