Given the task definition, example input & output, solve the new input case.
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'.
Example: Person1:      Hey man , you wanna buy some weed ?  
 Person2:Some what ?  
 Person 1:Weed ! You know ? Pot , Ganja , Mary Jane some chronic !  
 Person2: Oh , umm , no thanks . 
 Person1:      I also have blow if you prefer to do a few lines . 
 Person2: No , I am ok , really . 
 Person1:      Come on man ! I even got dope and acid ! Try some ! 
 Person2: Do you really have all of these drugs ? Where do you get them from ? 
 Person1:      I got my connections ! Just tell me what you want and I ’ ll even give you one ounce for free . 
 Person2: Sounds good ! Let ’ s see , I want . 
 Person1:      Yeah ?  
 Person2:I want you to put your hands behind your head ! You are under arrest ! 
Output: informal
Based on the conversation, we can see that there is a presence of exclamation which is not present in a formal discussion. Therefore this is an informal conversation

New input case for you:  Person1:       Hi , I am afraid that the fax machine in my room won ’ t be working till tomorrow . A technician has just come and checked it . He will bring me a new one tomorrow . It seems there is a big problem with mine and it will take some days for repairing . Can I use the one in your office ? 
 Person2:Of course you can . I am sure this one works very well . I just sent dozens of pages . How many pages are you sending ? Are you familiar with my fax machine ? 
 Person1:        Yes , I think you have the same model as I have . Does your fax machine print out immediately a transmission protocol ? 
 Person2:Yes , it will print immediately . 
Output:
formal