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 ! Do you have a place where I can exercise ?  
 Person2:Yes , sir . We have a fine exercise facility .  
 Person1:        I'm happy to hear that . Now , would you tell me where it is ?  
 Person2:You're actually standing above it . Just take the elevator or stairs down one level .  
 Person1:        Is the hotel going to charge me a dollar a minute for gym use ?  
 Person2:No , sir . There's no extra charge . All you need is your room key to open the door .  
 Person1:        And the gym hours are ?  
 Person2:Sir , you'll be pleased to know that our gym never closes .  
 Person1:        One more question , Do you have a trainer ?  
 Person2:We might be getting one in the near future . But at the present time , no . 

formal