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:       It is really exciting news . 
 Person2:What news ? 
 Person1:        You don ’ t know ? The company is going to replace these old computers with the latest ones . 
 Person2:You know what we will get ? 
 Person1:        We will all get a docking station on our own desk from which you can remove your laptop easily . And if you come back to office , you just reconnect your laptop with docking station . 
 Person2:What docking station ? 
 Person1:        This is a kind of socket mounted to your desk . The socket has all the wire connections of the company line and all the other office automation equipments , like fax , copier , a screen , printer and scanner , and it will be very convenient . 
 Person2:Another big step forward in saving on our office equipment , I don ’ t need a desktop anymore . A laptop is enough . 

informal