   happiness   Thank you, Mr.Smith. I'm returning to China today.     happiness   Today?  
    happiness   Yes. I appreciate all help and in particular, all the time that you've spent on my account during my stay here.     happiness   Don't mention it. I am pleased to help you.  
    happiness   If there's anything that I can help you in the future, please let me know.     happiness   
 You are always welcome, Miao Yan. 
 Of course, thank you very mush.    neutral  Hey! What are these?