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:       Hello , ABC Company . Can I help you ?  
 Person2:Yes , of course . I am calling to apply for a job as an accountant .  
 Person1:        Can you name some courses you completed ?  
 Person2:Sure . The main courses I took included commercial accounting , cost accounting , industrial accounting , electronic accounting , and so on . 

formal