answer: #Person1#'s glad that Jane notices that #Person1# lost some weight. #Person1# tells her #Person1# took off 4 kilos by changing eating habits.
documents: #Person1#: Hi Jane, you look great. 
  #Person2#: You too. Have you lost some weight? 
  #Person1#: Yes, I took off 4 kilos. I am glad you notice it. 
  #Person2#: Not some crazy diet fat I hope. 
  #Person1#: No no, I just changed my eating habits. I eat a balance meal. and I eat less than before. 
  #Person2#: Good for you, keep it up.