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:       So Emily , what do you like to do for fun ?  
 Person2:I like to go to the movies . What do you do in your free time ?  
 Person1:        I also like going to the movies .  
 Person2:Well that's great ! It's nice that we have something in common . 

informal