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:       Excuse me , driver , where is the main area for restaurants ? 
 Person2:It's near the Wall Street , a bit far from there . Why not get on the car 
 Person1:        OK . Is there a Chinese restaurant ? 
 Person2:Of course . More than that , you have Italy pizza , English steak , kimchi and local specialties . 
 Person1:        Woo , I can't help being there . 

informal