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:       How are you getting along with your wife now ?  
 Person2:What can you expect ? Not that good .  
 Person1:        What are you going to do then ?  
 Person2:Just let it go .  
 Person1:        How are your work now ?  
 Person2:Not bad , just let it go . 

formal