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:       Whose part do you think is best played ? 
 Person2:That of the old man . 
 Person1:        You're absolutely right ! That's the very figure I like best . 
 Person2:Some of the scenes moved me into tears . 

formal