Why is Mr. Hamilton upset?

M: Hi, Brittney. I just got a call from Mr. Hamilton.(47) He’s a little upset that he hasn’t received his travel itinerary.
W:(48)That’s odd. I emailed the itinerary to him on Monday.
M: Really? Are you sure you sent it to the right address?
W: Yes, I got it directly from his company’s Web site. (49)I’ll call Mr. Hamilton to let him know that I’ll print out a hard copy and fax it to his office right away.