Later that day they had to postpone their dinner plans on the mainland because there is a work related almost-emergency at White corp.
Fox and Daniel developed a tool that needs to be deployed next day, and neither of them will be available. That is why Aiden had to join conference call to get necessary information to handle the deployment next day.
Sarah didn't say anything. She knows that things happen, and this is work. She took her laptop and kept busy.
Maybe one evening of doing nothing is what she needs to unwind. Last two weeks were wonderful, but exhausting. Aiden released his planning-beast-mode without any restrictions, and almost every minute of the day was planned. One evening without plans will actually be a pleasant change.