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:       Excuse me . When is breakfast time ?  
 Person2:From 6:00 to 9:00 .  
 Person1:        Well , I would like to order breakfast for tomorrow coming .  
 Person2:Certainly , Sir . What would you like to have ?  
 Person1:        Please give me two fried eggs , two orders of toast and a cup of coffee .  
 Person2:Fine.Have a nice stay here . 

formal