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:       Dad , do you know where Mom is ?  
 Person2:I think she is in her room putting a little something together for you to take to school with you .  
 Person1:        She'd better not start crying like she usually does .  
 Person2:I know , but she is going to miss you something awful . Have I told you how proud I am of you ?  
 Person1:        Dad , now don't you go getting mush on me .  
 Person2:I mean it . You have really shown us that you are prepared to take on the adult world .  
 Person1:        That means a lot to me Dad . Thanks .  
 Person2:We have great confidence in you . 

informal