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 was your trip to Brazil ? Did you learn anything ?  
 Person2:I had no idea how seriously that country takes soccer !  
 Person1:        Tell me about it .  
 Person2:Okay . In the middle of their streets there are parks , big soccer fields as far as you can see .  
 Person1:        Really ?  
 Person2:That's not all . They use them ! Every night men , women , children all out there till 3 and 4 a . m .  
 Person1:        Are you serious ?  
 Person2:I don't know how they function the next day ! It's like they eat and breathe soccer ! 

informal