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:       How about this floor lamp ?  
 Person2:Fine , just get it ! We have been shopping for furniture for five hours ! I ’ m so tired !  
 Person1:        We still need to find an armoire and a dresser .  
 Person2:Fine ! I am going to go home and drop off this nightstand , coffee table and love seat while you look for the rest of the things .  
 Person1:        Great ! Pick me up in about an hour because I think I ’ ll also get a bean bag and a dining set .  
 Person2:While you are at it can you pick out a nice recliner ? I really want one so I can watch TV .  
 Person1:        Recliner ? In my beautifully decorated living room ? I don ’ t think so ! 

informal