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

[EX Q]: Sentence1: No, that's all I needed. Thank you for your help - goodbye! Sentence2: I will take the one that arrives at 15:08. can you make me a booking for 8 people on Wednesday? I will need a reference number. Sentence3: The train should depart from Cambridge on Wednesday and headed for Stansted Airport. It should arrive by 15:15. I would also like you to make a booking for 6 people. Sentence4: I'm looking for a train. Sentence5: I have two trains that would suit you. One arrives at 14:08 and the other at 15:08. Do you have a preference? Sentence6: I have 2,828 trains with different routes, to help narrow it down, where will you be departing/arriving, and what day/time? Sentence7: It was a pleasure to assist you. Please use us again for your future needs. Have a good day. Sentence8: Sure thing! I've booked the train for 8, and your reference number is I62H3VUY . Is there anything else I can do for you today? Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I'm sorry, I only know that it is moderately priced. Can I book a room for you? Sentence2: What is the price range? Sentence3: Is there a particular area of the city where you'd like to stay? Sentence4: No that's all. Thanks! Sentence5: Yes. There are a number of hotels with wifi. Archway House is one of them that I can recommend. Sentence6: You have a nice day. Good bye. Sentence7: Howdy! I'm in town for the night and need a place to stay. I'd like a four star joint with free parking, if you please. Sentence8: no that's fine. Sentence9: Nice! I hope you enjoy this beautiful city, I found 5 hotels for you. What is your price range? Sentence10: Is there anything else you will need today? Sentence11: Archway house is in the moderate price range. They are located at: 52 gilbert road. Anythign else you need? Sentence12: I have 16 guesthouses that are 4 star and have parking, do you have any other requirements to help narrow the search? Sentence13: I don't have a price range. As long as it's nice. Sentence14: Sure, what is its address and price range? Sentence15: Do any of those have free wifi? Sentence16: No, I don't care about the area, either. But do you have a guesthouse? Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Yes, I need tickets for 3 people please. Sentence2: Any area is fine. Please just recommend a restaurant, and send me the address and postcode. Thanks in advance! Sentence3: Your booking was successful, the total fee is 53.7 GBP payable at the station . Reference number is : 23926N66 . Let me know if I can do anything else for you. Sentence4: I found multiple Indian restaurants in the expensive price range. There are many choices in the Centre, which part of town do you prefer? Sentence5: Only the best will do. Can you find me something in the expensive price range? Sentence6: I hope you have a great time. Sentence7: thanks again for everything. Sentence8: Of course. What time and from where are you departing? Sentence9: Rajmahal is very popular. Their address is 7 Barnwell Road Fen Ditton and their post code is cb58rg. Will that be all today? Sentence10: which side of town do you prefer? Sentence11: that is it for today. have a good day Sentence12: Train TR6989 leaves at 10:32 and arrives by 11:32. Would you like to book it? Sentence13: You are quite welcome. Thank you for using our services. Sentence14: I need to catch a train into Cambridge. Could you help me find one? Sentence15: I also need a place to eat serving indian food Sentence16: I need to go to cambridge from broxbourne and the train should leave after 10:00 on a tuesday. Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]:
Answer: (B) System