answer: #Person2# buys a bouquet of violet for #Person2#'s wife's birthday according to #Person1#'s suggestion.
documents: #Person1#: Hello! Can I help you?
  #Person2#: Today is my wife's birthday, so I want to buy a bouquet for her.
  #Person1#: What kind of flowers do you want?
  #Person2#: I have no idea.
  #Person1#: How about rose? It's the most suitable one for lovers.
  #Person2#: But rose is too common.
  #Person1#: Well, what about violet? It means the eternal beauty.
  #Person2#: It looks good. Pack me a bouquet of violet, please.