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:       Awful ! My cell phone is out of service again . Fred , can you lend me some money ? 
 Person2:How much do you want ? 
 Person1:        200yuan . I bought a computer online , so I have to pay the mortgage . 
 Person2:I am so sorry to hear that . Is that enough ? 
 Person1:        It's so nice of you . You really make my day . 
 Person2:Forget it ! We seemingly need to gather money little by little . 
 Person1:        What you said is absolutely right . I will pay you back as soon as I get back on my feet . 
 Person2:No rush . You can give it back whenever you have it . 

informal