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:       Can you play baseball with me today ?  
 Person2:No , I can't . I'm sorry . I have to help my mother . We're going to move tomorrow .  
 Person1:        Where's the new house ? Is it far from here ?  
 Person2:No , it's not far . It's near our old house .  
 Person1:        Can I help you pack ?  
 Person2:Sure . Thanks . 

formal