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

[Q]: 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
[A]: Answer: (B) System


[Q]: Sentence1: Then you are all set? Sentence2: I booked you a black volvo. The driver can be reached at 07410117478. Is there anything else I can help you with today? Sentence3: I'm sorry, I clearly wasn't paying attention. Yes that is all I need. Sentence4: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 0IJIWWQ9 . What else can I help you with? Sentence5: We have five hotels that meet that criteria, are you looking for a specific part of town? Sentence6: Yes. Have a great day. Sentence7: Anything in the centre would be fine, whatever you recommend. Sentence8: Regretfully, I don't have a listing for Venetian cuisine. Do you have a second choice? Sentence9: I'm looking for a place that has 3 stars and free parking. Sentence10: There are over a hundred restaurants to chose from do you have a price range? Sentence11: Does that one have free internet as well? If so it will work great for me. Sentence12: Yes I can. What type of place to stay would you like? What area of town? Sentence13: Yes the hamilton lodge is 3 stars moderately priced and offers free wifi and parking. Sentence14: There are 4 results. restaurant one seven, the oak bistro, the copper kettle, and cotto. Would you like more information on any of those? Sentence15: Sadly, I don't have access to that information. The Oak Bistro might be a good choice. Their phone number is 01223323361 if you'd like to call them Sentence16: Thanks, I need a taxi to commute between the two places. Sentence17: I am not looking for a specific area, but I would like for it to be in the moderate price range, please. Sentence18: Definitely something moderately priced. If you can't find Venetian, how about British? Sentence19: Thank you for calling. Sentence20: I'm looking for a restaurant that serves venetian food. Sentence21: Yes, please. Find out which of the four restaurants have vegan options, please? Sentence22: How about the hamilton lodge it's located in the north. Sentence23: I am traveling between the two places discussed, I need to reach the restaurant by the booked time. Sentence24: I can help you book a taxi but first I need some information - where are you leaving from and what's the destination. Also what time do you want to leave? Sentence25: I also need a place to stay. Can you help with that? Sentence26: Okay, well, let's go ahead and book a table for one at 11:30 on Tuesday. Question: Who has spoken the sentence 18? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Thanks for letting me assist you today. Have a great time! Sentence2: that is it for today, thank you Sentence3: I need a different time. I want to arrive by 05:30. Sentence4: Alright. The type of car is a white lexus and the contact number is 07607179806. Anything else? Sentence5: Yes of course, from where will you be leaving? Sentence6: i want to book a taxi. Sentence7: I have ordered one for you their pick up time is 1:00pm. Is this time okay or do you need a different time? Sentence8: From museum of classical archaeology to london kings cross train station, please Question: Who has spoken the sentence 7? (A) User (B) System
[A]:
Answer: (B) System