原文：W: Good morning, Star Hotel. Can I help you? M: Yes, I need to cancel my booking. W: No problem. Just give me your name and date of visit. M: Li Xiaoping, June 7th through 11th. W: I see your information here on the screen. I’ll cancel your booking.M: Thank you very much. W: You’re welcome.18. Why is the man making the phone call?19. What is the woman asking the man to tell her?信息明示题。对话一开始，女士询问男士需要什么帮助，男士说需要取消预订。由此可知，男士打电话的原因是B“为了取消他的预订”。A“为了预订宾馆的房间”、C“为了确认他的预订”和D“为了换一个宾馆房间”均与对话内容不符，因此可以排除。