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

Ex Input:
Sentence1: I recommend university arms hotel. it is rated 4 stars and is expensive. Their number is 01223351241. Sentence2: Can you help me find a place to eat serving british food in the moderate price range? Sentence3: I have several listings. Please provide the part of town you prefer so I can narrow it down. Sentence4: Ok, can you book a room for our group or are you expecting me to call them? Sentence5: Yes, I'd like a hotel in the same area. Sentence6: In the centre if possible Sentence7: can please provide more information to help us serve you better. Sentence8: No thank you that will be all for today Sentence9: I can book it for you. Sentence10: Yes please, could you book a table for 6 at 16:45 on Wednesday? Could i get a reference number too please? Sentence11: sure I can help you with that, when are you planning your stay? Sentence12: i dont mind any price. Sentence13: How about the oak bistro located at 6 lensfield road. The post code is cb21ab and phone number 01223323361. Can I book this for you? Sentence14: I actually need a moderate hotel in the centre. I don't need free parking. I will need the hotel booked for 6 people, 2 nights, on Wednesday, please. Sentence15: You have your choice of an expensive or moderate price range in that area, do you have a preference? Sentence16: Wednesday, for 2 nights. Sentence17: Ok. I have a table for 6 booked for you at the Oak Bistro. Your reference number is 9SGIM1SR . Is there anything else I could help with today? Sentence18: It needs to be close to my hotel and open late. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Ok, that would be great. Can I get the reference number please? Sentence2: Sure, and make me a booking for 7 people. Sentence3: I'll be departing from Cambridge on Wednesday. Sentence4: Yes I need a train going to birmingham new street leaving after 18:15. Sentence5: I have Hughes Hall, 01223334898, with free entrance. The broughton house gallery at 01223314960, also free. I don't seem to have any churches. Can I help you further? Sentence6: there are some great museums, colleges and churches for you to visit. Sentence7: Please recommend some worthwhile places to visit in the centre. Sentence8: Have a wonderful visit. Thank you for using Cambridge TownInfo Centre. Goodbye. Sentence9: I will go ahead and book that for you. Sentence10: Great, I would like to get some phone numbers for those places in the centre. Sentence11: Where will you be departing from, and on what day? Sentence12: Thank you. That's all I need for today. You've been a great help. Sentence13: There are five trains leaving on Weds. Do you want me to pick one to book? Sentence14: TR9236 leaves cambridge on wednesday on 19:01 and arrives at birmingham new street at 21:44. I have booked 7 tickets. Your Reference number is : 2BGY3ZRW . Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: I suggest Kohinoor. The address is 74 Mill Road City Centre. Would you like me to book a table for you? Sentence2: Thank you so much, that is everything that I need. Sentence3: Unfortunately, they are booked at that time. Can I try another time for you? Sentence4: Thank you. Goodbye. Sentence5: Oh, there are many nice Indian restaurants to choose from. What price range are you looking for? Sentence6: That was successful. Your reference number is HMN75TCM . Sentence7: I am looking for a cheap Indian restaurant located in the centre, Sentence8: I will be leaving from hamilton lodge and heading to the restaurant. Sentence9: Your car is booked. A black tesla will pick you up at Hamilton Lodge and get you to Kohinoor by 14:00. Their contact number is 07942596374 if you need to call. Sentence10: Can you tell me where you will be leaving from? Do you want me to make a hotel reservation for you? Sentence11: I sure can! The Hamilton is a guesthouse on the north side. It is moderately priced, has 3 stars, free internet and parking. Would you like a room? Sentence12: Wonderful! I also need some information about a hotel called the Hamilton Lodge. Can you help me with that? Sentence13: Can you reserve me a taxi that arrives to the restaurant before 14:00 on wednesday? Sentence14: Okay, let's try for 13:00 instead. Sentence15: Sure. I just need a table for myself at 14:00 on Wednesday. Sentence16: Hi, I'd like to try some Indian food. What do you have? Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:
Answer: (A) User