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:       This little wooden stick is called a tee .  
 Person2:What do you do with it ?  
 Person1:        For the first drive , put the golf ball on the tee , and push the tee into the ground .  
 Person2:Okay .  
 Person1:        Pick up a wood and hold it like this , interlocking your fingers .  
 Person2:OK .  
 Person1:        Position yourself , swinging the club , watch the ball and hit it as hard as you can .  
 Person2:Hey !  
 Person1:        Not too bad . The goal is to get the ball into the hole with as few hits as possible .  
 Person2:Got it . 

informal