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:       Nice weather , honey ! 
 Person2:The days are getting longer ! 
 Person1:        May and Daniel often like this kind of weather . 
 Person2:Yeah , they can enjoy themselves in the day time and it is not so hot . 
 Person1:        Honey , how about taking them to the beach this weekend ? 
 Person2:That's great ! 
 Person1:        Since last time we've climbed the mountain , we haven't gone out for a long time . 
 Person2:And this kind of weather is rare for the season either . 
 Person1:        Yes , I remember last year this time , the weather is so hot . 
 Person2:So we must seize this chance to go the beach . 
 Person1:        Daniel loves the beach very much ! 
 Person2:He will enjoy himself this weekend . 

informal