Can a service provider delete appointments from the front end?

Hi,
I am gradually getting appointments set up on my site, it has certainly taken a while to get used to it!
My site is here: http://findatuor.sg (WIP)
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Please tell me if it is possible for a logged-in service provider to delete appointments from the front end?
Are there settings for this? If so where can I find them?

Thanks and regards,
Michael