"One-way Conversation" -- There is no such thing. The definition of the term "conversation" requires that at least two people valued as equals are involved in a discussion where they present their ideas and feelings in an attempt to reach a mutual understanding. A "one-way conversation" would be better entitled as a "monologue" or "soliloquy". While the two differ in some respects, they both involve the ideas and opinions of a single person.
"This is my world. You lot just work here."
"I am a minister of Death, praying for War."
"I can neither confirm nor deny."
"I love blood and violence!"
