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:       Happy New Year , Jim !  
 Person2:Thank you , same to you ! Lee , have you got any plans ?  
 Person1:        Yeah , I'm going to the Temple Fair with my family .  
 Person2:How nice ! Have fun ! 

informal