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:       Oh , honey . You came . I'm so glad ! Why are you wearing a bonnet ? 
 Person2:Uh , just for fun . Happy Easter , Mom . We got you these Easter lilies . 
 Person1:        They're beautiful . Taylor , you're so pale and skinny ! 
 Person2:Of course I'm pale . It's just now the beginning of spring . I don't have my summer tan yet . 
 Person1:        I guess . Are you sure you're taking care of yourself ? 
 Person2:I'm fine , Mom . Remember Holly ? This is her roommate , Yi-jun .. 

informal