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:       Good game ?  
 Person2:Not bad . But too hot for me today .  
 Person1:        Yes , I know . Kind of hard to concentrate , isn't it ?  
 Person2:Absolutely . Who were you playing with ?  
 Person1:        Oh , just on my own . I just joined , so I don't really have any partners .  
 Person2:Really ? Oh , well , in that case we should play together some time . What's your handicap ?  
 Person1:        16 . Yours ?  
 Person2:No kidding ! I'm 16 , too . We should definitely play together some time . My name's Bob .  
 Person1:        Jane . Nice to meet you .  
 Person2:Me too . So , do you like the course ?  
 Person1:        Yes , it's fine . However , I personally think the fairways between the greens are a bit too long , especially for such a hot climate . Don't they have carts ?  
 Person2:Well , they used to , but they got rid of them because of environmental concerns .  
 Person1:        Oh , that's good . I guess the caddies were pleased .  
 Person2:Actually , in my opinion , the carts were better because you don't have to tip them .  
 Person1:        Yes , but look at it this way , getting rid of the carts probably gives more work to local people , which is a good thing , right ?  
 Person2:Possibly , but I still miss them ! What bothers me is that the heat makes the caddies ' life quite hard . One member's caddy fainted last week !  
 Person1:        How awful , poor guy .  
 Person2:Right . Luckily it was on the eighteen hole , quite near the clubhouse , so he didn't have far to carry him .  
 Person1:        Oh , my God , you're kidding me ! He carried him back ?  
 Person2:Yup . 

informal