Right now, Opal reintroduces itself every conversation you have with it saying:

"Hi there! I'm Opal, Optimizely's AI. Great to meet you! I can help you create content, come up with campaign ideas, generate hypotheses for experiments, and much more. I can also conduct web research, analyze data, summarize documents, and answer your questions about Optimizely products. I have access to a lot of tools to help you get work done, so just try me for anything that comes to mind. Also, if you need help with using Opal, just ask me!

What are you working on today?"

It could say something more relevant to the company, user or the new chat. Other AI's do this as well by just saying hi to the user (nice and short), but you could add more context (maybe generated daily?) talking about top things at the company. This could be something configurable in the company's account.