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 am confused by what he said .  
 Person2:Why do you say that ?  
 Person1:        I don ’ t know what he wants to do . Does he want help me or just scold me ?  
 Person2:Think a little . I think he means well at the bottom of his heart . 

formal