Attendee list

Would appreciate helpful tips!

I hosted a virtual event a few weeks ago and was unable to stay close to the laptop. I would love to see who of my invited guests attended the event (so I can reach out to each of them and thank them for joining) and if possible I'd like to recover the chat. Does anyone know how I might do this with an 'unpaid' account? 

I'd be willing to purchase a monthly membership if I could go back and recover this information, but with my currant plan I am unable to gather if this would be possible.

Thank you in advance for your help!