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 are you feeling , John ? 
 Person2:Oh , not too bad , but I've got to stay in bed . 
 Person1:        Do more exercises after you are healthy . 
 Person2:Ok , I will . You have said that many times . 
 Person1:        Are you hungry ? Do you want me to buy something for you to eat ? 
 Person2:No , there ’ s no need . Thank you all the same . 

informal