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:       Hello ! How are you .  
 Person2:Not too well ! I ’ m just to the doctor . I haven ’ t been feeling too well over the last few days .  
 Person1:        What have you got ? A cough ? A cold ?  
 Person2:That ’ s the funny thing . I don ’ t what ’ s wrong with me . I just feel exhausted .  
 Person1:        Perhaps you ’ Ve been working too hard . You do have a high-pressure job .  
 Person2:Maybe . I haven ’ t been able to keep my food down either . That ’ s unusual .  
 Person1:        Well . I ’ m sure the doctor will be able to prescribe something to make you well again . Dr . Jameson is very good .  
 Person2:Yes , he is . I ’ Ve make an appointment for 10 o ’ clock , so I ’ d better move along .  
 Person1:        OK . Hope you feel better soon . You should take it easy . I ’ m sure the doctor will prescribe rest , you know . 

formal