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:       Did you sign up for the picnic party ? 
 Person2:Yes , of course . I love the picnic party . It ’ s really family fun time . 
 Person1:        This time you can bring your daughter with you . 
 Person2:Right , she is so excited and simply can ’ t wait . 
 Person1:        There are times of games planned , should have a grand time . 

informal