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

Sentence1: No, you have been a great help. Thank you. Good bye. Sentence2: I would be happy to help you find a train. Can you confirm where you will be departing from? Sentence3: I quite enjoy Byard Art Museum located at 14 King's Parade. It is free also. Can I give you any more information? Sentence4: I could use some help finding a museum to visit. Sentence5: Which area is it in? And can you also give me the post code? Sentence6: Yes, I'll be departing from peterborough and it needs to arrive by 20:45. Sentence7: TR9805 will arrive at 20:38, would that work for you? Sentence8: Byard Art is south and the postcode is cb21sj. Would you like information on another attraction? Sentence9: I am looking for a train on Friday to Cambridge Sentence10: There are many lovely museums in Cambridge. Would you prefer a certain type of museum, or a particular neighbourhood? Sentence11: Yes please book me tickets for 5 people Sentence12: It's been my pleasure. Thanks for using our service. Good day. Sentence13: May I help you with anything else, such as a restaurant? Sentence14: No, that one sounds perfect, thank you. Sentence15: The booking was successful the price is 82.5 pounds your reference number is 7HQD6471 . Do you need anything else? Sentence16: I'm open to just about anything. What's your favorite? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

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
Answer: (B) System

Sentence1: Okay, the post code is cb43ax and the phone number is 01223351880. Sentence2: What times do they have available. Sentence3: It would be easiest if you would pick a time. Sentence4: What are some expensive british restaurants to dine at? Sentence5: Unfortunately, there are no British restaurants in the north that are expensive. Would you like mt o look in another are or try a different cuisine? Sentence6: Sure, when would you like the reservation for? Sentence7: Yeah, I'm looking in the north. Sentence8: sure, there's one there called restaurant two two. Sentence9: Actually, I don't need to book a time right now, I just need the postcode and phone number for the time being. Sentence10: I hope you have a great stay in town. Goodbye. Sentence11: How about expensive French restaurants in the north? Sentence12: Thank you. I am also looking for places to visit in town. I think a college would be nice. Could you recommend one? Sentence13: Sure, are you looking in a certain area? Sentence14: That's all I needed today. Thanks! Sentence15: Can I also have their phone number and address? Sentence16: Sure, Christ's College would be a good choice. It's in the centre of town and does not have an entrance fee. Would you like more information? Sentence17: Of course. The phone number is 01223334900 and the postcode is cb23bu. Can I help you with anything else today? Sentence18: Can you make me a reservation please and send the reference number? Question: Who has spoken the sentence 16? (A) User (B) System
Answer: (A) User