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:       Where did you go yesterday ?  
 Person2:I went to Croydon .  
 Person1:        Did you go shopping ?  
 Person2:No , I went for an interview .  
 Person1:        Oh , did you get a job ?  
 Person2:Yes , I got a job as a Management Trainee .  
 Person1:        Fantastic . 

informal