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:       What are you working on ? 
 Person2:I'm figuring out my budget . 
 Person1:        What budget ? 
 Person2:I'm making a shopping budget , so that I don't spend too much money . 
 Person1:        How much money can you spend ? 
 Person2:I can only spend $ 300 a month . 
 Person1:        Why only $ 300 ? 
 Person2:I need to save the rest . 
 Person1:        For what ? 
 Person2:I need to pay my bills . 
 Person1:        Your budget is a good idea . 
 Person2:I know . It's going to save me a lot of money , I hope . 

informal