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:       Fixing computer isn ’ t my cup of tea . You can leave this job to Jason .  
 Person2:Yeah , he has a good commend of computer skills . But ...  
 Person1:        But what ?  
 Person2:But he is always talking big . 

informal