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

[EX Q]: Sentence1: The area doesn't really matter, can you pick a popular me for me? Sentence2: hmm, what about chinese food? Sentence3: You're all set! It's a grey volvo. If you need to contact the driver for any reason, the contact number is 07174343971. Sentence4: Yes, I'd like to take my husband there at 11:30 on Wednesday. Sentence5: Sure I've found an expensive place named yu garden in the east, would you like me to book something? Sentence6: Thank you, you were a great help. That's all I needed. Sentence7: have great day too Sentence8: welcome and have a great day Sentence9: Booked! The table will be reserved for 15 minutes. Your Reference number: 5R5C75ZP . Sentence10: Would you like me to reserve it for you. Sentence11: Sure. What time would you like to leave? Sentence12: I'd also like to book a taxi from the pool to the restaurant that arrives by the reservation time. Sentence13: Parkside Pools is centrally located and their address is Gonville Place. Is there anything else I can help you with today? Sentence14: i am looking for a swimming pool. Sentence15: I'll be going now. Good-bye Sentence16: As long as it arrives by 11:30 it doesnt matter when it leaves Sentence17: Sure, which part of town are you looking for? Sentence18: I'm looking for a sri lankan restaurant. Sentence19: Yes, please. I'll need the contact number and car type. Sentence20: I'm sorry. I'm not able to find anything that meets your criteria. Would you like to try a different type of food? Question: Who has spoken the sentence 17? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Yes, there are 2 in the north, 1 in the east and 1 in the centre. Which would you be interested in? Sentence2: Train TR8464 leaves at 11:21 and arrives at 12:10. Would you like to book that one? Sentence3: Actually none of the pools in our database have an entrance fee listed. Is there anything else I can help you with? Sentence4: Im leaving from Cambridge and going to Stevenage. Sentence5: I'm looking for a train to stevenage, leaving on Sunday. Sentence6: Do you have entrance fees for any of the others? Sentence7: No, I need to leave some time after 14:30, and I'll be traveling to Cambridge. Sentence8: Thank you for contacting Cambridge TownInfo centre. I hope you have a pleasant trip! Goodbye! Sentence9: No thank you that is all the information I need today. Sentence10: Before we do that are there any attractions that feature a swimming pool in town? Sentence11: There are many trains at that time, where are you leaving from? Sentence12: What is the name, entrance fee, and phone number of the one in the center? Sentence13: the 1st train out of cambridge going to stevenage is at 15:21 arriving at 16:10. shall I get a ticket for you? Sentence14: The name is Parkside Pools. The entrance fee is not listed in our database, but you could probably get it by calling them at 01223446100. Question: Who has spoken the sentence 8? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Not, at the moment. However, I would also like to find a hotel to stay with free wifi and a moderate price range. Sentence2: Do you want the reservations to begin on Friday? Sentence3: I will be departing from stansted airport and want to leave after 18:15. Sentence4: You are welcome enjoy ! Sentence5: Yes the same day please. Sentence6: Train TR5921, 44ld and leaves at 18:24 Sentence7: Where do you wish to depart from? Sentence8: yes, what is the travel time, train ID and price please per ticket Sentence9: Train TR5921 leaves Stansted Airport at 18:24 and arrives in Cambridge at 18:52 at a price of 10.10 pounds per ticket. Would you like to book this? Sentence10: There are 17 options. Do you care about area, type or star rating? Sentence11: There is one option available. It is cityroomz. Do you want to book? Sentence12: Yes, please book it for the same day for a party of 4 for 4 nights. Sentence13: I would like a 0 star hotel. Sentence14: Booking was successful. Your Reference number is : RWZ39FBX . Sentence15: Could you confirm the travel time and price please? Sentence16: I am looking for a train that leaves on Friday and goes to cambidge Sentence17: TR5921 departs the airport at 18:24 and arrives by 18:52, does this suit your needs? Sentence18: Thanks, that's all I needed today. Goodbye! Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]:
Answer: (B) System