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:       Jack , what do you think about the election ?  
 Person2:I think the campaign is a blockbuster .  
 Person1:        How many people have flung their hats into the ring ?  
 Person2:Finally 100 candidates ran for one seat .  
 Person1:        Who do you think will be elected ?  
 Person2:It's hard to say . They all had an active campaign to round up the votes .  
 Person1:        I think Mr . White would be elected , you know he has spent millions in this campaign and he blasted the opposition in his campaign speech .  
 Person2:Maybe . Who knows ? 

formal