Happy Birthday Mom

Jess: hey mom, how many people should I rsvp for your birthday brunch?
Mom: 1:30pm
Jess: no, how many of your friends?
Mom: They will all wear nice clothes
Jess: But how many of them will wear nice clothes?
Mom: Well, maybe we can do 1pm
Jess: 1:30 is fine. How many of your friends? Please listen to my question carefully.
Mom: You told me I can invite up to 5 friends!
Jess: so 5?
Mom: no, 3.