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 would like to talk to you , if you have time .  
 Person2:What ’ s going on ?  
 Person1:        I want to discuss some things about my lease .  
 Person2:What aren ’ t you too sure about ?  
 Person1:        Can you tell me when my lease is up ?  
 Person2:Your lease is for three years .  
 Person1:        If I ever decide to leave before the three years , will there be a problem ?  
 Person2:If you do , I will keep your deductible .  
 Person1:        Why is that ?  
 Person2:If you break the contract , then you will not receive your deductible .  
 Person1:        Oh , I see .  
 Person2:All right . I ’ m glad I could clarify things for you . 

informal