Assistance with Query

I am trying to set up a query to pull based off of information in a certain field of the post contents.
There is a content section in my view called: Sales Rep. It looks like this:

Sales Rep: NAME

The query I use is:
SELECT 'Tickets.Ticket ID', 'Tickets.Subject', 'Tickets.User', 'Ticket Posts.Contents' from 'Ticket Posts' where 'Ticket Posts.Contents' LIKE '%Sales Rep: NAME'
However it keeps telling me that there is no information. I have used different users as well, in case someone did...

Assistance with Query