answer: #Person1# helps #Person2# change the item which has a hole.
documents: #Person1#: Did you check before you left the shop?
  #Person2#: Yes, I did. But when I got home, my son put it on and we found the hole.
  #Person1#: Really? Let me have a look at it. Mm. OK. Let me change it for another one.
  #Person2#: Thank you very much.