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:       Oh man ! I ’ Ve been starving myself for days now and I haven ’ t lost an ounce ! 
 Person2:Are you trying to lose weight ? 
 Person1:        Yeah , my friend is getting married next month and I ’ m supposed to be a bridesmaid . I have to fit into my dress and look nice for her wedding , but I haven ’ t lost any weight ! Look at these love handles . 
 Person2:You don ’ t have to starve yourself to lose weight . I think that ’ s where you ’ re going wrong . 
 Person1:        Why ? If I eat less , then my body will start eating away at my fat reserves , right ? 
 Person2:Not really . You should try to not eat foods high in calories , salts or saturated fats . Stay away from oily food and artificial flavors . 
 Person1:        So you are saying that I should eat , but I should just watch what I eat ? 
 Person2:Yes ! You can also try to reduce your intake of carbohydrates and foods that are high in cholesterol . You can have steamed veggies or increase your protein intake found in chicken or fish . 
 Person1:        If I do all this do you think I can lose twenty pounds in four weeks ? 
 Person2:Don ’ t count on it . 

formal