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 ! Does this hotel have an exercise facility ?  
 Person2:But of course ! We have a great exercise facility .  
 Person1:        Good . Now exactly where is it ?  
 Person2:It's located right under our lobby . Just take the elevator or the stairs one flight down .  
 Person1:        Is this going to cost me anything ?  
 Person2:No , sir . The gym is absolutely free . However , be sure to take your room key with you .  
 Person1:        When does the gym open and close ?  
 Person2:The hours couldn't be better , 24/7 .  
 Person1:        Very good . Now , is there a trainer down there ?  
 Person2:I wish I could tell you yes , but no , there isn't . 

formal