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:       Doctor , I feel much better now . Will I be albe to go home some time this week ? 
 Person2:That's good to hear . You've had an ideal recovery from your operation . We're going to send you home tomorrow . 
 Person1:        Do you think I can get back to work very soon ? 
 Person2:Don't be in such a hurry . I'm confident that you'll be completely recovered in 4 to 6 weeks . 
 Person1:        Is there anything I should do ? 
 Person2:You'd better have a good rest for a week . Be sure to have regular meals . Stay away from alcohol . Give up smoking at least a little while . 
 Person1:        Should I take some medicine ? 
 Person2:Yes . I'm going to give you some . Take one tablet of this medicine three times a day before meals . For that one , two tablets . And remember to come to the outpatient department for a consultation in two weeks , please . 
 Person1:        It's very kind of you . 
 Person2:You're welcome . We wish you a speedy recovery . Goodbye . 

informal