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:       The Phoenix team overpowered its counterpart 86 to 50 .  
 Person2:They're absolutely right to get a replacement for 21 .  
 Person1:        If the Phoenix beats the Rocket , it will enter the final .  
 Person2:No way , if it still has 21 . 

informal