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:       Can you speak English ?  
 Person2:Yes I can . I speak it very well .  
 Person1:        Where did you learn it ?  
 Person2:I lived in England when I was a child .  
 Person1:        What else can you speak ?  
 Person2:Well , I know a little Italian . 

formal