First Time Creating Invoice And Despite The Warning I Didn't Create From Account

I'm new to Sytist and likely because I was multi-tasking, I didn't fully understand the message in the red box on the Create Invoice page. For creating the invoice, I created the Account, but then mistakenly returned to Create Invoice to create the invoice. I did this twice :( Now, I have 2 invoices not linked to their respective accounts.

I don't see where I can cancel the invoice. Is this possible?

Per the message in the red box, I'm not sure that I can correct. 

Any guidance would be appreciated...and lesson learned on my part to not do this again.  :)

it's easy to fix Tim will give you a query to run. But I just fix it in the database. Just need order# &customer #

View the invoice in the admin and in the Status tab change it to trash. Then create another invoice from their account.

You can also go to Order -> Then Trash in the left menu and there will be an option to empty trash to completely delete the order.

Looks like this works fine. 

Thank you!