Why won’t Mr. Wang be able to give the speech?

M: I just received a call from Larry from our head office, and he said Mr. Wang can’t give the presentation tomorrow at our company’s annual conference being held at the Prince Hotel because of a sudden illness in his family. (53)He asked me to take his place at the conference. (54)Would you happen to know if there is a bus or subway that goes directly from here?
W: I didn’t know that you were going to give a speech there. In fact, Mr. Singh and I are going to be in attendance, and we are planning to drive. If you’d like, you can ride along with us.(55)
M: That sounds wonderful. What time will you be taking off?
W: We will meet here at 7 since it only takes about an hour to get there. We might even have time for breakfast once we get there.