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:       Oh , Linda . You must be so excited about going to study in America .  
 Person2:Oh yes I am . I have always wanted to go to the States . I love meeting new people and making new friends .  
 Person1:        Well , I am sure you will .  
 Person2:Well , there is one thing .  
 Person1:        What is the matter ?  
 Person2:I am a little worried about my host family . You know , in the agreement , I have to do some cooking for them .  
 Person1:        Yes ?  
 Person2:Well , I am just afraid they won't like my Chinese way of cooking .  
 Person1:        Oh , listen , you'll soon learn , and I am sure they will explain to you how they like to get prepared .  
 Person2:Oh , let's hope so . 

formal