John: Hey Mary, long time no see! How have you been?
Mary: I've been good, thanks for asking. How about you?
John: I've been really busy with work. I actually wanted to talk to you about that. Would you be interested in working with me again?
Mary: Oh, I appreciate the offer, but I'm actually quite happy where I am now.
John: I figured you might say that. Your current employer is a competitor of mine. But think about it, Mary. The grass isn't always greener on the other side.
Mary: I understand, John. But I'm actually quite happy with my job and the work I'm doing. I don't think it would be fair to leave them now.
John: I understand. But if you ever change your mind, you know where to reach me.请总结以上对话的主要内容。
John and Mary had a conversation about work. John expressed interest in having Mary work for him again, but Mary declined, saying she was happy with her current job. Despite John's efforts to persuade her to join him, Mary politely declined and the conversation ended amicably.