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:       Can I talk to you for a moment , manager ?  
 Person2:Yes , of course . What is it ?  
 Person1:        I've decided to leave .  
 Person2:Leave ? Why ?  
 Person1:        I've worked here for two years . And I want to do something different .  
 Person2:What do you mean by something different ?  
 Person1:        I want to live abroad and learn to speak a different language .  
 Person2:I'm really sorry . But I understand .  
 Person1:        Thank you , manager . 

formal