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:       Could you show me where the ice cream is located ?  
 Person2:Just go to the end of the store . And it will be on your right . We have all the ice creams and frozen foods back there in the freezers .  
 Person1:        This is my first time here .  
 Person2:Please notice all of our aisles are numbered and classified by signs on the ceiling . That might help you .  
 Person1:        I'm glad I asked you . So this is aisle 6 where I can find all the canned fruits and vegetables .  
 Person2:That ’ s correct . 

informal