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:       Are you ready to order , sir ? 
 Person2:Yes , I'll have tomato soup and my friend will have mushroom soup . 
 Person1:        Do you want anything to go with soup ? 
 Person2:Yes , bring us two steaks and two loads of bread , please . 

formal