Accept & Do Not Send a Response

I'm sure this would cause an issue, the point around 'Do not send a response' is that it doesnt send a response. There can be many reasons why this might be the case, for example if you were forwarded a meeting and dont want to create undue 'stress' to the meeting organiser in advance.

I think the problem here is offering too many choices by intersecting two separate functions, Accepting the meeting request and communicating with the organiser. Would it not be simpler to have a simple Accept Button and a Reply Button next to each other. Then the choice to update the meeting organiser could be treated more like Read Receipts and become a separate user choice.