Provide the theme summaries for the following conversation: 

#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.

Summary: 
#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.