answer: #Person1# thanks #Person2# for the letter and tells #Person2# #Person1#'ll be back.
documents: #Person1#: Thank you for your letter. 
  #Person2#: Is your waist any better? 
  #Person1#: Yes, I'm feeling very well these days. 
  #Person2#: I'm glad you are getting better. 
  #Person1#: And I was glad to receive your letter. 
  #Person2#: Then when will you be back again? 
  #Person1#: I will be back again next Wednesday. 
  #Person2#: I hope to see you at that time again. Bye. 
  #Person1#: Bye.