Group Registration For Webinar

Hi all, in our use case, it is often a manager who is registering more than one webinar participant. Is it possible to create a registration form where they can specify:

1. How many attendees (price adjusts accordingly)
2. Provide name and email for attendees

All users specified would receive the normal notification emails. We are currently using a 3rd-party form software to accomplish this, but it has its issues.

Thanks in advance.