When was the woman originally going to see Mr. Henderson?

W: I have a meeting with Mr. Henderson at his office in an hour, but I don’t know how to get there. His assistant isn’t answering her phone.
M: Really? However,(47)you told me the other day that you aren’t scheduled to go there until tomorrow after his meeting with the vice president.
W: That’s right, but his assistant left a message with my secretary this morning.(48)Mr. Henderson was supposed to go on a business trip next Monday, but his schedule was changed. He is leaving tomorrow, and he wants to discuss the issue with me as soon as possible.
M: Oh, okay. Anyway,(49)if you go to see Emma at the information desk, she’ll give you the directions to his office.