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:       how did you do on your BELTS exam ?  
 Person2:fantastic ! I got an overall score of eight .  
 Person1:        that's excellent ! Have you received your conditional offers yet ?  
 Person2:yes . I'm just waiting until I officially get admitted to the university with a conditional offer to apply for my visa .  
 Person1:        do you know where the visa office is ?  
 Person2:no .  
 Person1:        it's just near the Dong Si Shi Tiao subway stop .  
 Person2:that's not too far away . Do you think I'll get a visa ?  
 Person1:        have you ever gone abroad before ?  
 Person2:yes , I've been to Tailband , Egypt , and Japan .  
 Person1:        have you ever been denied a visa before ?  
 Person2:never .  
 Person1:        that's good . Are you planning on immigrating to another country ?  
 Person2:no , I want to come back to China after I graduate .  
 Person1:        that's exactly what the visa officers want to hear . Do you have enough money for tuition and room and board ?  
 Person2:I've received a full scholarship , so I won't need any other money to live off while I'm studying .  
 Person1:        I think you have a very good chance of getting a visa . I can help you prepare for the visa interview if you want .  
 Person2:that's be great . The more prepared I am , the better . 

informal