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:       I think we have had a very pleasant conversation , haven't we ?  
 Person2:Yes , I think so too .  
 Person1:        Do you have any other questions ?  
 Person2:Let me think ... I want to know if the company can provide free accommodation for a new employee .  
 Person1:        I'm sorry we can't now .  
 Person2:I really hope that your company could provide living places ; otherwise I have to rent a house to live .  
 Person1:        Maybe the company will build dormitory for the employees in the future .  
 Person2:That would work too .  
 Person1:        Anything else ?  
 Person2:Some companies will pay part of the phone bills for the employees . Will this company do so ?  
 Person1:        I'm sorry we won't do so for a new employee . We only provide this benefit to employees who have made significant contributions to the company .  
 Person2:I understand . Will the company provide training ?  
 Person1:        Yes , we will , and the staff will have a chance to travel every year .  
 Person2:That's great . Thank you very much . 

informal