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 ’ m so excited , mother . Oh , a new baby !  
 Person2:My first grandchild .  
 Person1:        And my first nephew . He looks a lot like you , mum . He does .  
 Person2:Do you think so ? Well , I guess . He does look a lot like me . Oh , he ’ s got Richard ’ s eyes though .  
 Person1:        Yes , he does have Richard ’ s eyes . The baby even looks like you than Richard does .  
 Person2:Well , children usually resemble their parents .  
 Person1:        It ’ s true . Michelle is a lot like Henry in so many ways . And she is shy with new people just like he is .  
 Person2:You often like comparing children with their parents .  
 Person1:        You ’ re right . 

informal