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:       Rachel ? I ’ m not sure how you want to handle this account . I think there are a few things to be sorted out .  
 Person2:I agree , Toni . I think the biggest problem we ’ re facing is how to bring it in under budget .  
 Person1:        That ’ s true . But even beyond that , there ’ s the question of meeting the deadlines they ’ Ve set .  
 Person2:Right . Look , why don ’ t we make a list of the problems we ’ re dealing with . It ’ ll be easier to work through them that way . 

informal