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:       Hey , Ted . What are you up to this Friday ?  
 Person2:Well , I have the day off from work .  
 Person1:        That ’ s great ! Do you have any plans ?  
 Person2:Well , I ’ Ve been working so hard lately , so I ’ ll probably just take it easy .  
 Person1:        Sounds nice .  
 Person2:Yeah , I ’ ll probably just stay in and relax . Maybe watch a few movies .  
 Person1:        Can I stop by ?  
 Person2:Sure . Any time . 

informal