Hey Paige,
This customization is indeed possible, there are just a few bits of information you need to start with and can build from there.
First, you should familiarize yourself with our templating system – we cover it in-depth in our Themer’s Guide here → https://theeventscalendar.com/knowledgebase/themers-guide/
You use the same principles there to customize the tickets/email-related files, which are located in the /views/tickets views folder.
Once you’ve got the gist of customizing files in general, you should be able to make a version of the emails here by simply duplicating the original email.php and attendees-email.php files in the correct locations, as per the Themer’s Guide.
Then just add code like this where you’d like to show the start date:
echo tribe_get_start_date();
And this for the end date:
echo tribe_get_end_date();
I hope that information helps you get started on this.
Best of luck with your customizations,
George