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: Is this the class to prepare for interviews ?
Person2:This is the right place . Please join us .
Person1: I have an interview tomorrow , so I hope I can learn everything quickly .
Person2:We are all going to have great interviews . What are some things that we need to remember in an interview ?
Person1: I think that we should make sure that our looks are the best they can be .
Person2:Right , and what about our friendliness and attitude ?
Person1: Yes , and being friendly and having a good attitude also help me relax .
Person2:Did you know that they pay as much attention to what you ask as to what you say in an interview ?
Person1: No , I didn ' t . What else should I keep in mind ?
Person2:Just relax , listen carefully to the questions , and be honest in your responses .

A: formal
****
Q: Person1: How are you getting along with your paper ?
Person2:I haven't finished it . It is very difficult .
Person1: You should hand it in before next Sunday .
Person2:Oh , I know . I will try my best .
Person1: I believe you can do a good job .

A: formal
****
Q: Person1: Hello , ladies . I'm firing up the grill . We can eat in an hour or so .
Person2:Chips , finger foods , desserts , baked beans . Where're the pork and beef strips ?
Person1: Yi-jun , we're in the States . Here it's all burgers , steaks , and dogs .
Person2:Ah ... hence the buns and condiments we bought . And this is Holly's potato salad .
Person1: You can put stuff on the picnic table . Back to work . The grill is calling me ...
Person2:Let me know if I can help .

A:
formal
****