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:       I really enjoyed that film ! What about you ?  
 Person2:So did I . At first , I thought it was going to be boring , but then it turned to be good .  
 Person1:        What part of the film do you like best ?  
 Person2:Well , the scene of the hero's struggle with enemies impressed me the most .  
 Person1:        I loved it , too . To tell you the truth , I even dropped tears .  
 Person2:Actually , tears also came to my eyes .  
 Person1:        It has got this year's Oscar Award .  
 Person2:It deserves it . The film gave us a lot of inspiration . 

informal