How to send booking cancelation email to myself, and customer?

Hello, as the title states I am using the free version of the plugin which is absolutely amazing which I might add but I am trying to get it to send a email to myself and the customer when I cancel the appointment. Also is it possible to give the customer the option to cancel the appointment? If it helps I am a detailer and I am using this to sell detailing services and I want the customer to be able to cancel a appointment if they need to.