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:       The sun is up ! Time for all the campers to rise . Time to get paddling .  
 Person2:Oh , no ! No more paddling ! My arms are sore !  
 Person1:        Do not worry . Today will be easier .  
 Person2:Beth , what date is today ?  
 Person1:        Today is Saturday .  
 Person2:What is the date today ?  
 Person1:        Today is July 4th .  
 Person2:Oh , i almost forgot . Today is my mom's birthday .  
 Person1:        Call her on my cell phone . Wish her “ Happy Birthday ! ” Tell her you are out exploring the great American wilderness . Tell her I said she is lucky to be born on Independence Day .  
 Person2:Thanks ! I will do that ! When is your birthday ?  
 Person1:        It is December 25th .  
 Person2:Wow ! What a lucky girl ! Your birthday is on Christmas Day .  
 Person1:        Yes , I am lucky . I was born on Christ ’ s birthday . Maybe that is why I usually go to church on Sundays . When is your birthday ?  
 Person2:April 2nd . I missed being a target of a lot of jokes by one day . I guess I am lucky , too !  
 Person1:        That is true ! Here , have some Granola for breakfast .  
 Person2:Thanks .  
 Person1:        After eating , we will take down our tent . Then we will pack everything into the canoe , We can shove off by 6  
 Person2:I guess so .  
 Person1:        How about going for swim around 10  
 Person2:That should work out great . You are miracle worker ! You have got me awake and motivated .  
 Person1:        Happy Independence Day ! 

informal