What is ticket? So much outsourcing managed services company write 1 ticket - $3.

What if i write in ticket "please secure my Linux cluster, there are 40 servers. And i need highest quality, please do complex security analysis and give me detailed report"

A ticket is for your customers.

A ticket is one of the following.

One help desk submission posted by a user
One live chat session posted by a user
One email sent by a user

That is what a ticket is generally described as in those situations