Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. You are required to assign a label 'formal' if there is an absence of emotion and a presence of questions anywhere within the conversation. If such pattern is not found assign the label 'informal'.
Input:  Person1:       I found a great school for Junior !  
 Person2:Don't you think it's a little early to be looking for schools ? We haven't even had the baby yet !  
 Person1:        We can't be too cautious about these things .  
 Person2:You are going to be such an adorable father ! Tell me about this school .  
 Person1:        There is a huge slide on the playground and lots of trees and even a little brook !  
 Person2:What about inside the school ?  
 Person1:        There is a library right inside the front door .  
 Person2:I think our child is going to love it ! 

informal