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:       She has contributed to a new school . 
 Person2:Oh , I know . She is a famous woman and a focus of the newspaper now because of this thing . 
 Person1:        I hear the school is very modern . It has the best equipments . 
 Person2:Yes . Do you know its name . 
 Person1:        She said she would name it after her father . 
 Person2:Oh , I think she wants to do this thing in memory of her father . 

formal