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 winter in Ottawa is freezing .  
 Person2:From mid-November , snow started to pile up in Ottawa .  
 Person1:        I think I will be adapted to it .  
 Person2:Although the weather here is very cold , the people are warm .  
 Person1:        Yes , that's the reason why I remain here . 

informal