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:       Have you heard the news ?  
 Person2:I haven't heard anything .  
 Person1:        Deborah had her baby last week .  
 Person2:Nobody told me .  
 Person1:        I thought you heard .  
 Person2:I really wasn't told anything .  
 Person1:        She was a cute 8 pounds 6 ounces .  
 Person2:Wow , how exciting .  
 Person1:        I know , you should really go and see her and the baby .  
 Person2:Of course I will .  
 Person1:        I just wanted to let you know what happened .  
 Person2:I appreciate that . 

informal