The conversation between human and AI assistant.
How do I start a chat by wishing happy birthday to a girl?
That's a good idea. What if I don't know her very well?
If you don't know her very well, you could still wish her a happy birthday and introduce yourself. For example: "Hey, I don't think we've met before, but I saw that it's your birthday today! I just wanted to wish you a happy birthday and hope you have a great day."