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:       How is Rose now ?  
 Person2:It ’ s still touch and go . We don ’ t see how she can make it .  
 Person1:        I ’ m sorry to hear about that . 

informal