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 .  
 Person2:This is Soft , may I speak to Lamely ?  
 Person1:        This is Lamely .  
 Person2:Hello , Lamley.Are you free tomorrow ?  
 Person1:        Yes .  
 Person2:Would you like to go to an activation with me ?  
 Person1:        I'd like to.see you tomorrow .  
 Person2:See you . 

informal