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 Input:
Person1: I Don't know how they do it ! Our competitors have undercut us by 10 % percent on the price of our latest model . There is no way will be able to compete against that . We're barely breaking even with the present prices .
Person2:These price wars are disastrous for our bottom line . If they're charging 10 % less than we are , we've got to find a way to lower our price while keeping our profit .
Person1: Profits are almost nonexistent now , we can't beat their price . How do they keep their price so low ?
Person2:We can try to lower our cost of production then . We need a price that we can compete with , something comparable with the competition .
Person1: You really think we can make it ? I don't have much faith in our ability to lower the price again . We're no match for them , the competition will beat us hands down .

Ex Output:
formal

Ex Input:
Person1: Is there a vacant table for two now ?
Person2:Yes , sir , let me show you the table . This way please .
Person1: Well , we would like to sit over there . Is that all right ?
Person2:Of course .

Ex Output:
formal

Ex Input:
Person1: Good morning golf aficionados ! My name is Rick Fields , and you guessed it , I am here with my main man , Bob Copeland .
Person2:Thank you , Rick ! As you can see , ladies and gentleman , we are here in beautiful Pebble Beach where the top golfers in the world are trying to win the grand prize of one million dollars !
Person1: Whoa , that ' s a lot of cash ! Let ' s go to the course and see how Tiger Woods is doing .
Person2:All right , we are here at the eighth hole . It ' s a par four , and has some very difficult hazards which many golfers find difficult to avoid . Although , I did see Jack Nicklaus hit a hole in one on this very same hole !
Person1: Tiger Woods is about to tee off , and let ' s see if he has the same luck as Jack . Tiger is asking his caddie for his driver and , he seems to be very nervous .
Person2:Oh no ! Not a good swing at all ! It ' s definitely not his day today . On the seventh hole he got a bogey and before that he barely made par . He will definitely not get a birdie on this shot .
Person1: It seems that his ball has flown somewhere deep in the trees . He is having a hard time finding it and even his caddie has climbed a tree to try and spot it .
Person2:Oh no ! A bear ! Run , Tiger , run ! Somebody call animal control !

Ex Output:
informal