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:       Are you going to watch the Indy Five Hundred on TV this weekend ?  
 Person2:I'm not really into racecar driving .  
 Person1:        You were when we were in high school . That , and baseball .  
 Person2:Yeah , well , times change . Look at you-you're a father now . You can't say that you haven't changed .  
 Person1:        True , but I still have to watch my baseball . The season's in full swing now .  
 Person2:I mean , I know spring training's over , but I'm just not into all that .  
 Person1:        Hello ? Is the real Taylor in there ? 

formal