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:       Hi , Mr . James , what's the rush ?  
 Person2:The bank closes in 30 minutes and I need to cash a check .  
 Person1:        I can lend you some money .  
 Person2:Thanks . But it's necessary for me to buy a TV set .  
 Person1:        Can I help in anyway ?  
 Person2:You can take me to the bank if you want to .  
 Person1:        Sure . Let ’ s go . 

informal