instruction:
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'.
question:
Person1: Hi , Ellen . That outfit looks terrific !
Person2:Thanks , Jim . I didn ' t think guys paid attention to stuff like that .
Person1: No , we just don ' t usually admit it !
Person2:Well , thanks for the compliment anyway !
answer:
informal

question:
Person1: Hi ! Someone has reported a fault on one of your copiers .
Person2:That's right . I'm glad you're here . It hasn't been working properly for the last few days .
Person1: When was it serviced ?
Person2:Just a couple of weeks ago . It's usually very reliable .
Person1: What's actually wrong with it ?
Person2:Well , it's making a strange noise when we try to change paper trays .
Person1: I'm sure it's nothing serious , probably just a minor fault . I'll have a look at it .
answer:
formal

question:
Person1: What are you doing this weekend ?
Person2:Nothing much . I ' m going to the cinema on Friday night but that ' s all I have planned .
Person1: So you ' re free on Saturday night ?
Person2:That ' s right .
Person1: Would you like to have dinner with me ?
Person2:Oh , that would be lovely . Shall we say seven o ' clock ?
Person1: Perfect . I ' ll pick you up then .
answer:
informal