How can I get Kiscolon's tickets?

Hint 1 of 7:

His secretary is never going to let you have them.

Hint 2 of 7:

You're going to have to get her out of the room.

Hint 3 of 7:

Give her something to do.

Hint 4 of 7:

Have you read any notes around the office?

Hint 5 of 7:

Like the post-it near the coffee pot?

Hint 6 of 7:

It says not to leave an empty pot on the burner.

Hint 7 of 7:

Well, put an empty pot on the burner.