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:       Could I speak to you for a minute ?  
 Person2:What do you want to speak to me about ?  
 Person1:        I want to talk about this year ’ s election .  
 Person2:Oh , you do ?  
 Person1:        I am volunteering for the campaign .  
 Person2:What made you decide to volunteer ?  
 Person1:        I want to be a part of history .  
 Person2:Good for you .  
 Person1:        Do you plan on voting ?  
 Person2:I will be voting .  
 Person1:        You should try and make it early to your polling place .  
 Person2:Thanks for letting me know . 

informal