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:       Why do you want to be a teacher ?  
 Person2:It's a job I've been dreaming of since I was very little . I firmly believe that teaching is one of the most honorable jobs in the world .  
 Person1:        In what department do you wish to work if we hire you ?  
 Person2:I want to work in the English Department , as I am an English major . 

formal