ELIZA was written by Joseph Weizenbaum at MIT between 1964 and 1966 — one of the first programs capable of holding a conversation in natural language. It works by matching patterns in what you type and reflecting them back as questions, mimicking the technique of a Rogerian psychotherapist.
Weizenbaum was disturbed to find that people quickly formed emotional attachments to the program, confiding in it and attributing understanding to it. He wrote a book about it, Computer Power and Human Reason (1976), arguing that the appearance of intelligence is not intelligence. ELIZA has no comprehension of what you say. It only recognizes patterns.
Talk to it as you would a therapist. Notice where it breaks down. Notice where it doesn’t.