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:       Miss Fallen , can you tell me why you want to get a visa to the States ?  
 Person2:To study . I am going to the University of Tampa to do a postgraduate course for three years .  
 Person1:        And do you have the Letter of Acceptance from the University with you ?  
 Person2:Yes , here it is .  
 Person1:        Thank you very much . And do you have any proof of the financial support for the three years ?  
 Person2:I've got a letter from my bank here . It shows I am able to support myself during these three years of studies .  
 Person1:        Could I see that , please ?  
 Person2:Yes , here it is .  
 Person1:        Thanks very much . Well , I'll be able to give you a visa for one year , a student visa , that is .  
 Person2:Oh , but mine is a three-year program .  
 Person1:        Yes , it is a three-year , but you can renew the visa each year in the States . It is our usual procedure .  
 Person2:Okay , thank you . 

formal