You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Ex Input:
Sentence1: looking for a train going to Cambridge. Sentence2: How about TR3350 that leaves at 05:17? Sentence3: you can book it. get me the reference number too Sentence4: I am leaving on Sunday and need to arrive by 13:00 Sentence5: Thank you for using our services. Sentence6: Thank you that is all I needed. Sentence7: W8YHJKSV is the reference number Sentence8: What day and time are you wanting to travel? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: That was helpful! Thank you goodbye. Sentence2: What type of information do you need? Sentence3: I need information to find the huntingdon marriott hotel. Sentence4: You are booked at express by holiday inn cambridge. Reference number: FGSTOTPY . Sentence5: Unfortunately, the booking was unsuccessful. Would you like for me to find another hotel for you? Sentence6: Do you need anything else? Sentence7: I need help finding huntingdon marriott hotel please. Could you book a room for me for 6 people on monday for 5 nights please? Sentence8: I suppose so. Another hotel in the same general price range, if you can. Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: No, you've been a great help! Thank you! Sentence2: Great. By any chance is that near a place called Hamilton Lodge? Someone recommended it to me but I don't know much about it. Sentence3: Could you give me their phone number and postcode? And is that a guesthouse? Sentence4: I would recommend Camboats. They are located at the Plough, Green End, Fen Ditton. Their phone number is 01223902112. Their postcode is cb58sx. Sentence5: You're welcome. Have a great day! Sentence6: Yeah, a boat sounds good. Can you get me the phone number and postcode for one? Sentence7: There are 10 attractions in the east. Does a boat interest you? Sentence8: Yes it is a guesthouse. The number is 01223365664 and the postcode is cb41da. Can I help with anything else Sentence9: Hamilton lodge is at 156 chesterton road Sentence10: I'd like to check out an attraction on the east side. Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:
Answer: (A) User