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 would you describe your relationship with our boss ?  
 Person2:We have a fairly good working relationship , but there was also a rough spot .  
 Person1:        What do you think his strengths are ?  
 Person2:Well , he has an amazing ability to analyze information and he is very good at making the right decision in tough situations . 

formal