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 crunch time , isn't it ? I wasn't nervous before the meeting , but now I am .  
 Person2:No kidding . Time is running out .  
 Person1:        It would help to bring in a couple more troubleshooters .  
 Person2:Vince says he can't afford anybody else . We're got to come through .  
 Person1:        Do you think we'll make it ?  
 Person2:I guess we'll either make it , or we won't . 

formal