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:       Some people pile on their agonise and try to seek other ’ s sympathy by telling them how miserable they are .  
 Person2:Yeah . They take the advantage of other people's hospitality and generosity .  
 Person1:        I was fooled once . A lady told me she needed some money to keep the pot boiling . So I gave her some money and bailed her out of the situation . But later I learned that she had lied to me .  
 Person2:You are still wet behind the ears . You should have seen through her .  
 Person1:        Nothing rang a bell . 

informal