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:       I came to this lab to have my blood drawn . 
 Person2:You are in the right place . Roll up your left sleeve and have a seat . 
 Person1:        What am I being tested for ? 
 Person2:Your doctor wants to know what your white blood cell count is . 
 Person1:        What does my white blood cell count tell him ? 
 Person2:Usually if your white count is off , the doctor suspects an infection . 
 Person1:        How much will it hurt ? 
 Person2:It is only a pin prick . I have to put this tourniquet on your arm to make the vein easier to find . 
 Person1:        Is that my blood going into that tube ? 
 Person2:That blood that just filled the tube is all that I needed . Thanks for coming in ! 

formal