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

Ex Input:
Sentence1: Let's try for saturday, but if that is not available then tuesday would be fine Sentence2: I was able to book you for Saturday. Sentence3: That will be all, thanks again. Sentence4: I would like to leave after 21:30. Sentence5: What day will you be arriving? Sentence6: I found Alexander bed and breakfast . Do you want to make a reservation? Sentence7: Yes bookit for the same group of people 4 nights. Sentence8: thanks can I get a reference number please? Sentence9: Yes, i am looking to book a room at the alexander bed and breakfast. Sentence10: You are welcome enjoy Sentence11: Would you like to leave or arrive by a certain time? Sentence12: Yes, whichever train has seats available for 7 people. Sentence13: I'm looking for a train that goes to Cambridge on Saturday Sentence14: I will be departing from broxbourne. Sentence15: We have 3 options that meet your criteria. All depart within an hour of each other starting at 21:32. Would you like me to book one of them for you? Sentence16: Your booking was successful, the total fee is 100.24 GBP payable at the station. The train departs at 21:32. Your reference# is UZFW2TAQ . Is there anything else? Sentence17: Where will you be departing from? Sentence18: Your reference number is XVE54KKH . Is there anything else I can do for you? Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: I found the Cambridge Belfry. It is located in the west of town. Would you like me to book that for you? Sentence2: No, again, that is all, thank you. Sentence3: No, thanks. That will be all. Sentence4: Absolutely, the fitzwilliam museum's phone number is 01223332900. Is there anything else I can help you with today? Sentence5: Have a great day! Sentence6: The fitzwilliam sounds good. Could I get the phone number? Sentence7: Can I assist you with anything else today? Sentence8: There are 11 museums in the centre of town. A few are the regency gallery, the fitzwilliam museum, castle galleries, and primavera. Sentence9: I'm wanting information about museums in the centre of town. Sentence10: I'm also looking for a hotel that is cheap and includes free parking. Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Carolina Bed and Breakfast is a 4 star Guesthouse located in the East. At a moderate price point it boasts both free wifi and free parking. Need more information? Sentence2: Can you help me find a restaurant in the centre of town serving Italian food? Sentence3: Zizzi Cambridge is at 47-53 Regent Street and the postal code is cb21ab. Can I help you with anything else? Sentence4: I think I will try Zizzi Cambridge. Could I get the address and postcode? Sentence5: Maybe... is there any other place that's cheap and serves Italian food? Sentence6: Yes I am looking for a particular hotel called the Carolina Bed and Breakfast. Sentence7: There is also Pizza Express, it is an expensive restaurant, or you could try Zizzi Cambridge, which is a cheap option. Sentence8: We've got the Pizza Hut in the center of town that serves Italian food. Would you like to try that? Sentence9: The address for Carolina Bed and Breakfast is 138 Perne Road. Would you like me to book you a room? Sentence10: I need the address for Carolina Bed and Breakfast. Sentence11: No thank you. I just needed the information for now. Thanks for you help. Sentence12: I'm happy we could be of service. Thanks for using the Cambridge TownInfo centre! Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User