An example of an email confirmation for the Appointments + plugin by WPMU DEV.

Email Confirmation

<p>Dear CLIENT,</p>

<p>I'm delighted to confirm your consultation with me, Jane Doe on SITE_NAME.</p>

<p>Here are your consultation details:
<br>Your Session Type: SERVICE
<br>Date and time: DATE_TIME (Your timezone here)</p>

<p><strong>IMPORTANT:</strong></p>

<p>If you selected to meet me at my office, here is the address:
123 Fake Street
Somewhere, NY
12345</p>

<p>If you opted to meet me right on my site, when it's time for your consultation, click this link to access the video chat:
https://www.YourDomain.com/page/anotherpage/?H498DJ45/</p>

<p>If you chose Skype, my Skype name is yourskypename and if you chose Google Hangout, here is my profile page to send me a hangout request: https://plus.google.com/u/0/+JaneDoe/posts</p>

<p>Please add me whenever you would like before your session and if you didn't enter your Skype name or Google+ profile link when you booked your consultation, just hit reply and email me that info.</p>

<p>Need to cancel your appointment? CANCEL</p>

<p>If you have any questions , please feel free to contact me and let me know.  I look forward to speaking with you soon.</p>

<p>Sincerely,
<br>Jane Doe</p>

<p>Tile, Company
<br>www.YourDomain.com</p></br>