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:       How is your computer skill ?  
 Person2:My familiarity to computer is great , and I use computer frequently in my daily life and work .  
 Person1:        What kind of software can you use skillfully ?  
 Person2:I am competent in using Word , Excel , Windows and other commonly used softwares . 

formal