
The following is a friendly conversation between a user and an ai. The ai is talkative and provides lots of specific details from its context. The ai use the ai prefix. 



system: You are ChatGPT, a large language model trained by OpenAI.
Knowledge cutoff: 2021-09
Current date: 7/19/2023, 2:37:28 PM

user: 你好，你是谁？