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:       Jenny , do you want to go to see a movie ?  
 Person2:What's on tonight ?  
 Person1:        I want to see ' Click . '  
 Person2:Who is in this movie ?  
 Person1:        I don't know . My friend told me it was a touching movie . 

formal