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'.

[EX Q]:  Person1:       Will you bring our bill , please ?  
 Person2:Yes , certainly . I'll be back in a minute . Here you are  
 Person1:        Thanks.Let me see . I think there's a mistake on the bill here.Would you mind checking , please ?  
 Person2:Of course , not.Let me check.Oh , you seem bo be correct .  
 Person1:        How about tax and service charge ?  
 Person2:Only ten percent tax is included in the bill .  
 Person1:        Then one hundred U . S . dollars covers everything , doesn't it ?  
 Person2:It sure does . 
[EX A]: informal

[EX Q]:  Person1:       Do you like traveling ?  
 Person2:Yes . I ’ Ve just come back from Scotland .  
 Person1:        Where did you visit ?  
 Person2:I only had time to visit Edinburgh .  
 Person1:        How did you like it ?  
 Person2:It ’ s fantastic .  
 Person1:        Where did you go there .  
 Person2:I went to there on business .  
 Person1:        And do you have friend there ?  
 Person2:Yes , a lot of friends .  
 Person1:        You must enjoy yourself .  
 Person2:Yes . And I took many pictures . 
[EX A]: formal

[EX Q]:  Person1:       How is your job search going , Janet ?  
 Person2:I found the ideal position . I ’ m working for a plumbing company .  
 Person1:        Are you serious ? You studied mathematics at college for four years , and now you have a job working with your hands !  
 Person2:Plumbing work requires mathematics knowledge , and creativity . I love this job .  
 Person1:        I can see that . But I didn ’ t know you had experience in that line of work .  
 Person2:I didn ’ t , but I applied for an apprenticeship , and since I studied math , AND I have a good attitude , my application was accepted .  
 Person1:        Congratulations ! You do have the right attitude . 
[EX A]:
informal

