Hi ​@Victoria54253 - Thanks for reaching out!

Yes if you’re on the Teams plan and would like to add an additional host to an event, they would need a Calendly account and be invited to your Organization. This article covers the steps to do this here: How to add or remove users and seats

Alternatively, if you would just like to notify them of when new meetings are booked and include the meeting details, you can use one of our Workflows to send them an email automatically! You can read more on this here: How to send Workflow emails to non-meeting participants

Let me know if you have any questions.