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

Ex Input:
Sentence1: There are more than one hundred entries that match your requirements. What type of food do you prefer? Sentence2: I'm positive. There are however three hotels that have four stars that have free wifi, if you would like to view those options. Sentence3: A 4 star rating is fine, what do you have for that? Sentence4: The only French restaurant that fits your criteria is called Cote. They do not have any availability for Wednesday at 12:30. Sentence5: My pleasure. Have a great day! Sentence6: Wonderful! That's all I need. Thank you very much for your help! Sentence7: I prefer French Cuisine, can you find somewhere that will take reservations for 3 people at 12:30 on wednesday? Sentence8: Are you sure? I would prefer a 5 star hotel with free wifi. Sentence9: I have two in the west area and one in the centre area. Do you have a preference? Sentence10: Thanks I also need to find a hotel with a 5 star rating. Sentence11: Are there any expensive places to eat in the centre? Sentence12: That was a success. Your reference number is 2GY5ULLL . Sentence13: Can you try for 11:30 and give me a reference number please. Sentence14: The booking for the University Arms Hotel was successful, and your reference number is 414HUS87 . Sentence15: Unfortunately, I do not show any 5 star hotels. Would you like to try a different rating? Sentence16: The one in the centre area is fine. Can you please book it for 3 people, starting on Wednesday for 4 nights and can I please have the reference number? Question: Who has spoken the sentence 11? (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: No but I'd like it to include free wifi and be in some kind of guesthouse. Sentence2: Can you give me information on the one arriving in Cambridge closest to 20:00. I just need the train ID and price. Thanks Sentence3: The closest arrival time is 19:52, the trainID is TR4883 and the cost is 3.52 pounds. Sentence4: I need to find a place to stay with four stars in a moderate price range. Sentence5: I need to arrive in cambridge by 20:00 please. Sentence6: I'm happy to have assisted you! Thank you for using the Cambridge TownInfo centre. Have a nice day! Sentence7: I have 11 different options available. Did you have an area in mind for your stay? Sentence8: Possibly. I'd like their address, and to know if they have free parking. Sentence9: OK, and what time will you be traveling? Sentence10: Great. Thank you very much for your help. That is all for today. Sentence11: There are 11 hotels that match your search. Would the acorn guest house in the north work for you? Sentence12: Great! Also, I need to take a train from ely on Sunday. Sentence13: Alright, I have eight trains of that type. They leave 35 minutes after the hour every hour, starting at 5:35 and running until 19:35. Would you like to book? Sentence14: They do offer free parking. Their address is 154 chesterton road. Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:

Answer: (A) User