Create report where it lists the tickets from users that have a chat today

Please help.
I need to create report where it lists the open tickets from users that connected to chat on the same day.
I tried it on my end--using the most basic KQL knowledge that I have--but can't seem to figure out.

SELECT 'Tickets.Ticket Mask ID' FROM 'Tickets', 'Chats' WHERE 'Chats.Email' = 'Tickets.Email' AND 'Tickets.Creation Date' = Today()

The above says it's tickets is not related to chatobjects when I ran it.

Please advise.