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

[Q]: Sentence1: I'm just looking for something fun to do in the centre of town. Do you have any recommendations? Sentence2: I am checking on the train schedule from Peterborough to Cambridge. Sentence3: I will book it myself. Sentence4: What day do you want to depart? Sentence5: i want to depart on thursday. Sentence6: Can I get the phone number please? Sentence7: I also need an attraction. Sentence8: thank you and enjoy your stay. Sentence9: No thank you. That is all for today. Goodbye Sentence10: OK - is there anything else I can help you with today? Sentence11: TR418 leaves at 10:19. Whould you like me to book it? Sentence12: Sure many trains use that route. It would be helpful if you could narrow down a specific travel time. Sentence13: I want to leave after 10:00. Sentence14: Sure, their number is 08712240240. Is there anything else I can help with? Sentence15: Ok, I can help you with that. What type of attraction are you looking for? Sentence16: I'd recommend Vue Cinema. Would you like more information? Question: Who has spoken the sentence 13? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Maybe you could try again? Sentence2: I am looking for a place to stay in cambridge in the moderate price range with 4 stars Sentence3: I found the restaurant you want. Do you want me to make reservation? Sentence4: I am having a hard time booking this, could I make sure the place you would like is the Pizza Express at Fen Ditton? Sentence5: There are 11 matches. Do you have a preference for hotel types? Sentence6: Yes, for 5 people on Friday around 13:45, please Sentence7: I am not able to book anything right now. Sentence8: Okay....well I'm over here waiting....don't forget the reference number too Sentence9: I will go ahead and book that for you now. Sentence10: Thanks for the room booking. Can you locate a restaurant for me, too? The name is pizza express Fen Ditton. Sentence11: The booking worked this time! The reference number is S31A87TV . Anything else today? Sentence12: No problem. If you need anything else just call us back. Sentence13: Yes it is, but if 13:45 time isn't working then 12:45 would also be acceptable. Sentence14: Great, thanks for your help! Have a good one. Sentence15: You have a room booked at the Warkworth House (ref# TP8X26LA). Can I help you with anything else? Sentence16: No, but it should be in the east. Sentence17: I have 3 guesthouses matching your request. Do you care about parking? Sentence18: Pick one and book me for 5 people lasting three nights starting Friday please. Question: Who has spoken the sentence 15? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: i can help you with that! what day are you traveling? Sentence2: Archway House is a moderately priced guesthouse in the north with a 4-star rating. They offer free Internet and parking. Would you like to make a reservation? Sentence3: I'm also looking for a train to get to cambridge. I'll be departing from leicester. Sentence4: Sure, I'd be happy to help with your request. To help narrow down the results, what area and price range are you looking for? Sentence5: Can you help me find a 4 star rated place to stay please? Sentence6: Can you book for seven people for three nights starting from Friday? Sentence7: Your reservations have been made. Your reference number is A16QWFWX . Is there anything else I can assist you with? Sentence8: Moderate price range. Something with 4 stars. Area doesn't really matter to me. Question: Who has spoken the sentence 3? (A) User (B) System
[A]:
Answer: (B) System