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

[EX Q]: Sentence1: Yes do you have the name of the hotel? Sentence2: Booking completed! Expect a red Ford to pick you up at the hotel at 10:30. Their contact number is 07439027429. Can I assist you otherwise? Sentence3: It is in centre of town and has 4 stars and is priced expensive. Sentence4: I have booked it here is the information:Booking was successful. Reference number is : 4AHCO6OI . Sentence5: Hi, can you give me some information on a particular hotel? Sentence6: The post code for nusha is cb17dy. I'm checking on your taxi reservation. Sentence7: I need 3 nights starting on Thursday. Should have enough room to accomodate 4 people. Sentence8: What nights are you looking to stay so I can check the availability? Sentence9: Ok, thank you. I will need to know what kind of car is picking me up. Sentence10: It's called the University Arms Hotel. Sentence11: Okay, please provide me with the postcode, and also I want a taxi to take me there. It should leave the hotel by 10:30. Give me car type and contact number Sentence12: No, but thanks for all your help! Goodbye! Sentence13: There are two entertainment attractions in the south. I suggest nusha. Sentence14: can you try entertainment ? Sentence15: Great, can you help me find a multiple sports place to visit in the south also? Sentence16: I'm sorry, there are no multiple sports venues in the south part of town. Would you like to try another area or attraction? Sentence17: Have a great day! Sentence18: I'd like to book a few rooms for Thursday. Are there rooms available? Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Can you book a table at the Bistro for me? 4 people at 13:30 on Sunday, please. Sentence2: I am looking for a place to eat that's expensive and serves Belgian food. Sentence3: I just need the arrival time and price. Sentence4: I have two, the backstreet bistro and the slug and lettuce. Do you have a preference between the two? Sentence5: Yes, what time do I need to be at the station? Sentence6: How about somewhere expensive in the centre? Sentence7: Booking was successful. The table will be reserved for 15 minutes. Reference number is : NSLKEI1G . Sentence8: I want to leave after 10:30 on Monday. Sentence9: The TR8089 meets your criteria. Would you like to book tickets? Sentence10: You're welcome, have a good day. Sentence11: no such restraunts too Sentence12: Thanks! I also need a train from Cambridge to Ely, please. Sentence13: what time will you be departing? Sentence14: I should be asking you what time you need to be at the station. Sentence15: The arrival time for train TR8089 is 12:07, and it will cost only 4.40 pounds. Is there anything else I can help with? Sentence16: I'm sorry, we don't have any Belgian restaurants. Would you like to try a different type? Sentence17: That was everything. Thanks very much! Sentence18: How about a gastropub restaurant? Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Yes, Hi! I am looking for a hotel in the tampa bay area. Sentence2: Thank you for all your help. Sentence3: You are welcome. Thank you for calling. Sentence4: I'd like somewhere to go in town. Something in the centre please. Sentence5: You did not read the directions of this hit. There is no Tampa bay area. Please read the directions next time. Sentence6: I would like to leave on Sunday and arrive by 18:45. I need tickets for 8 people. Could you make the reservation and provide a reference number? Sentence7: 8 tickets please, and I will need the reference number. Sentence8: I can get you on TR0523 arriving at Stevenage by 14:10. How many tickets will you need? Sentence9: Anything you recommend. I just need the entrance fee, attraction type and phone number. Sentence10: i'm sorry, dude. i'm from florida so i'm not very smart. i'm trying to get from cambridge to stevenage. Sentence11: Little Saint Mary's Church is an architecture attraction with no entrance fee. Their phone number is 01223366202. Sentence12: If you would like to take a train from Cambridge to Stevenage there is one leaving Friday at 05:21 arriving by 06:10. Does that work? Sentence13: Is there anything in particular you're interested in doing/seeing? Sentence14: Your booking was successful. The total fee is 81.92 GBP which can be paid at the station. The reference number is 1A9JYQS7 . Question: Who has spoken the sentence 8? (A) User (B) System
[EX A]:
Answer: (A) User