answer: Helen tells John that he can use her foreign currency and suitcase during the holiday and she will have a holiday with him.
documents: #Person1#: Do I need a visa?
  #Person2#: No, I shouldn't think so. But you must take your passport of course.
  #Person1#: Yes, I know. I must get my traveler's check and some foreign currency.
  #Person2#: Yes, you need the traveler's check but you needn't get any foreign currency. You can have my US Dollars, I don't need them.
  #Person1#: Really? That's very good of you, Helen. But I must get a new suitcase, my old one needs repairing.
  #Person2#: You needn't buy one. You can have mine.
  #Person1#: That's very kind of you, Helen. I hope you don't mind my leaving you like this. I need a holiday. It won't be long.
  #Person2#: Don't be silly, John. I'm going with you. It's necessary for me to have a holiday too.