answer: Sam invites his Mom to Russia visiting her sister and brother, but Mom refuses.
documents: #Person1#: Hasn't it been hard for you without your sister and brother, mom?
  #Person2#: Yes, Sam, of course. We haven't seen each other for a long time.
  #Person1#: Mom, I have a surprise for you. I'll go on a business trip to Russia. I want you to come with me. You can meet them finally.
  #Person2#: No, Sam. It's very thoughtful of you, but I'm too old and sick to travel so far.