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:       Well , I ’ d better get back to work . I ’ Ve got a ton of stuff on my desk !  
 Person2:Me too . I ’ ll see you after work , huh ?  
 Person1:        Yeah , definitely . I was hoping to catch a ride with you .  
 Person2:Sure . Meet me at five . 

informal