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'.

Person1: Hello , is this People's Theater ?
Person2:Yes , it is . May I help you ?
Person1: Yes , are advance tickets for ' Nut croakers ' still available ?
Person2:What date , sir ?
Person1: October 16th .
Person2:Let me see . Yes , we still have some tickets left . Which performance ?
Person1: 7:30 p . m . performance , please .
Person2:OK , we have tickets at 100 yuan and 50 yuan .
Person1: I'd like to reserve two seats at 100 yuan , please .
Person2:All right . May I have you name , please ?
Person1: Du Kun .
Person2:When would you like to collect the tickets ?
Person1: Tomorrow .
Person2:We can hold them until one day before the show .
Person1: How do we cancel , just in case ?
Person2:Just telephone us , and let us know in advance . We don't charge for cancellation .
Person1: All right , thank you very much . Good bye .
Person2:You are welcome . Goodbye .
informal

Person1: Hey Lucas , how was your trip to Paris ?
Person2:It was wonderful , but I was so tired .
Person1: Did you go to the top of the Eiffel Tower .
Person2:Yes , that was the first thing we did . We went all the way to the top . There were visitorsfrom all over the world taking photos there .
Person1: What else did you see ?
Person2:Art galleries , cathedrals , statues , fountains , palaces , bistros , there's really too much to say .
Person1: You must have had a great time .
Person2:Yes , at the beginning we were all excited and had lots of fun . However , on the third day of travelling in the city , I felt sick I think I had something bad to eat but it passed by the evening .
Person1: Yes . you need to be careful with what you eat when you're abroad.sometimes new food might disagree with you .
Person2:On the fourth day , we went to taste the French cuisine . That was really fantastic . And no stomach problems .
Person1: That is great . Everyone says French food is wonderful .
Person2:You'll have to try for yourself some day .
informal

Person1: I am confused . How could a golfer need so many clubs ? Seems to me , 14 altogether , right
Person2:I should say , a a ' set ' of golf clubs is restricted to no more than 14 clubs .
Person1: Then what makes a ' set ' of clubs ?
Person2:In general , a set of golf clubs 3 , 4 , 5 , 6 , 7 , 8 , 9 , PW ; Woods : 1 , 3 , 5 and a putter .
Person1: So many ?
Person2:This is not to say you have to carry all of these clubs . It depends on your preferences .
Person1: Have you heard of Tiger Woods ?
Person2:Of course even people who don't know anything about golf know his name .
formal