您的日程很緊,我們的會見是否就到此為止。  as you have a tight schedule, i will not take up more of your time.

　　請代我問候王先生。  please remember me to mr.wang.

　　感謝光臨！  thank you so much for coming.

　　歡迎再來！  hope you'll come again.

　　歡迎以后多來北京！  hope you'll visit beijing more often.

　　請留步，不用送了！  i will see myself out, please.

　　多保重！  take care!