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's almost midnight ! We are about to start a brand new year ! 
 Person2:I know it's so exciting ! A new year is always like a clean slate . Fresh start to accomplish any dreams , objectives and goals . 
 Person1:        Do you have a New Year's resolution ? 
 Person2:I was thinking about it , but I'm never able to keep my New Year's resolution . Last year for example I joined a gym and only went twice . 
 Person1:        Yeah I know what you mean . That's why this year I am keeping things more simple . Maybe like getting together with friends I haven't seen in a long time , or doing some volunteering work . 
 Person2:That seems reasonable . We should get together and watch the ball drop in Times Square . 
 Person1:        Sure , as long as you don't try to kiss me at midnight ! 
 Person2:Well , we can't break tradition ! It's bad luck ! 

informal