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:       Hi , may I speak to Ryan , please ? 
 Person2:This is Ryan you are speaking with . What can I do for you ? 
 Person1:        Hi , Ryan , this is Malia , and I will not be coming to work today . 
 Person2:What is wrong with you ? 
 Person1:        I have really bad poison oak and can ’ t stop itching . 
 Person2:How long have you had it ? 
 Person1:        I ’ Ve had it a few days , but the rash really got bad last night . 
 Person2:How have you been treating it ? 
 Person1:        I have some lotion that the doctor gave me , as well as an antihistamine . 
 Person2:That should work . I ’ ll see you tomorrow when you return to work . 

formal