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:       Come on ! It's time to go ! 
 Person2:Wait a minute ! Just hold your horses ! What's your hurry , anyway ? 
 Person1:        Well , I've got to stop and get gas in the car , first . 
 Person2:That won't take long . 
 Person1:        Well , it won't if there no line at the pump . 
 Person2:Well , I'm not quite ready . 
 Person1:        I'll give you five more minutes , then I'm going on without you ! 
 Person2:You wouldn't do a thing like that ! 
 Person1:        Oh , yes , I would ! 

informal