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'.

Q: Person1: Good morning , Mary !
Person2:Good morning , John !
Person1: I want to have a few friends over for a dinner party to celebrate my birthday . Would you be able to come the next weekend on Saturday ?
Person2:I'd be delighted to , John . Saturday did you say ?
Person1: Yes , if that's all right for you .
Person2:I'm pretty sure I'll be all right . In fact , I'd be delighted to come over and celebrate your birthday with you . What time are you planning to start ?
Person1: Oh , good . If you could come around six thirty or seven o'clock , that would give us some time to chat a whit over a glass of wine before dinner .
Person2:That sounds fine . I'll be there around seven .

A: informal
****
Q: Person1: Excuse me , please.Could you tell me how to get to the No . 10 Middle School ?
Person2:Walk down this road , take the fourth turn to the right.Then you'll see it .
Person1: Is it far from here to there ?
Person2:No . It's only about five minutes ' walk .
Person1: Many thanks !
Person2:Not at all .

A: informal
****
Q: Person1: It may comfort you to know that many people attended his viewing .
Person2:How did they hear ? No one called .
Person1: In times of loss , it is often hard to pick up the phone . But his whole family was here .
Person2:His mom and dad must be destroyed . He was their only son .
Person1: And he was so young , with so much life to look forward to .
Person2:Yes ... thank you for understanding . We have to go now .
Person1: This sheet tells the visiting hours and funeral time and location .

A:
formal
****