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:       Hi , Alex . How are you doing ?  
 Person2:Just fine , Karen . I ’ m just taking a breather from all this paper work !  
 Person1:        I know the feeling . I ’ m calling to let you know about this new Italian place I found . It ’ s right around the corner .  
 Person2:I ’ ll have to try it . You know how I am about Italian food ! What ’ s the name ? 

formal