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 have an issue .  
 Person2:What ’ s going on ?  
 Person1:        There is a leaking pipe in my wall .  
 Person2:Is there any water damage ?  
 Person1:        There is mildew .  
 Person2:I ’ ll go to your apartment tomorrow to fix the pipe .  
 Person1:        Why can ’ t I call someone to fix it today ?  
 Person2:I ’ ll just do it myself .  
 Person1:        I need it done today .  
 Person2:You ’ re right about that .  
 Person1:        Are you okay with me calling a plumber ?  
 Person2:That ’ s fine . 

formal