Q: 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'.
 Person1:       How do you like your work ?  
 Person2:The work is rather hard , but it's interesting .  
 Person1:        What do you do ?  
 Person2:I work in a publishing house . How about you ?  
 Person1:        Mine isn't hard , but it's not interesting .  
 Person2:What do you do then ?  
 Person1:        I'm a clerk in a shop . 
A:
formal