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:       Can you tell me something about financial aid ? 
 Person2:What exactly ? 
 Person1:        How to apply for it ? 
 Person2:In your first letter , that is , when you apply for admission , you should also tell them you need their financial aid . 
 Person1:        Then ... 
 Person2:If the aid is available , they will give you two or more application forms , One is for admission , the others are for the aid . 
 Person1:        What if not ? 
 Person2:They will tell you the aid is impossible . 

formal