answer: #Person1# buys the bigger cake for a coworker because it's better to have too much than not enough, and wants it delivered to the office.
documents: #Person1#: Good morning, I'd like to buy a cake.
  #Person2#: No problem sir, we have many cakes here, what size would you like?
  #Person1#: Well, it's for my coworker's birthday, there are 14 people in the office.
  #Person2#: Well, this cake feeds 12 people and this one behind it feeds 20.
  #Person1#: I'll take the bigger one, it's better to have too much than not enough.
  #Person2#: Sounds good, do you want it delivered?
  #Person1#: Yes. Can you deliver it to my office? The birthday party will be after work at a park near the office.