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 , so how are we feeling today ? 
 Person2:Things are going well for me , Dr . Smith . 
 Person1:        Am I correct in thinking that you are here for your annual physical ? 
 Person2:Yes , I am applying for new health insurance , and I need a physical examination to qualify . 
 Person1:        Your basic physical exam will include lungs , heart , blood levels , and eyes , ears , and nose . 
 Person2:I ’ Ve been having a little trouble breathing . Would you look into that , please ? 
 Person1:        We can do an allergy test , and later I can send you for an asthma test . 
 Person2:I would appreciate it . When you give me a blood test , what are you looking for ? 
 Person1:        I am going to check your cholesterol , blood sugar , and white blood cell count . 
 Person2:I am expecting the tests to go well . I have been taking good care of myself . 

formal