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 can I help you with ?  
 Person2:I need to hire you .  
 Person1:        What do you need me for ?  
 Person2:I need you for my court date .  
 Person1:        What kind of case do you have ?  
 Person2:I ’ m being charged with a felony .  
 Person1:        I can help you with that .  
 Person2:What is your price ?  
 Person1:        I charge $ 150 an hour .  
 Person2:I can ’ t afford that .  
 Person1:        That ’ s my rate .  
 Person2:That ’ s expensive , but I need you . 

formal