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:       So , who do you work for ?  
 Person2:I work for a large multinational company called DAK Group . We have five main area of business - construction , heavy industry , shipbuilding , motor vehicles and telecommunications .  
 Person1:        And which side of the business do you work in ?  
 Person2:The motor vehicles division . I work in our Belgian factory . We manufacture components for our car production plants in Europe .  
 Person1:        Where are DAK headquarters ?  
 Person2:In Seoul . But the company has operations in over fifty countries and thirty factories all over the world . 

formal