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

Q: Sentence1: I have pulled up City Stop Restaurant. What information do you need? Sentence2: I would like to book a table there for 4 peole on saturday at 19:45. and can i please get a reference number? Sentence3: Alright, thank you very much. That's all I need for now. Sentence4: Booking was successful. The table will be reserved for 15 minutes. Reference number is : OMKMNJEM . Sentence5: I am looking for information about city stop restaurant? Sentence6: You are welcome. Goodbye. Question: Who has spoken the sentence 3? (A) User (B) System

A: Answer: (B) System
****
Q: Sentence1: Hmm. What about museums? Sentence2: Booking completed! Your contact number is 07349924614. The car type is a black ford. Can I help you with anything else? Sentence3: I don't care about wifi or parking. To be honest, I don't care what area it is in, either. What would you pick? Sentence4: Cambridge and county folk museum is available, would you like that? Sentence5: Can you tell what time you want to be picked up and at which location? Sentence6: I'm also looking for an attraction preferably on a boat in the west. Sentence7: Sure. That sounds good. Can I get their address and postcode please? Sentence8: Thanks! I also need a taxi between both locations, please. Sentence9: Wow that was fast thanks! No, that is all I needed. Hope you have a wonderful day. Sentence10: Sounds nice. What is the address and postcode please? Sentence11: I want to leave the hotel by 23:15. Sentence12: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence13: I'm looking for a moderately priced guest house. Can you recommend one? Sentence14: There are 15 options. Do you have a specific area you would like to stay in? And are you interested in wifi and parking? Sentence15: I would go with the Acorn Guest House if I were choosing a moderately price guesthouse. Sentence16: Sure their address is 2-3 Castle Street and the postcode is cb30aq Sentence17: The address is 154 Chesterton Rd, the postal code is cb41da, is there anything else that I can assist with? Sentence18: There are no boats in the west, can I try something else for you? Question: Who has spoken the sentence 11? (A) User (B) System

A: Answer: (B) System
****
Q: Sentence1: I'm looking for a train. I need to leave from Cambridge on Tuesday and go to Leicester. Sentence2: I was able to make a reservation for Saturday night at University Arms Hotel for 6 people. Your reference number is 7XXHIROP . Is there anything else you need today? Sentence3: Do you have a time that you would like to leave by or arrive by? Sentence4: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence5: Which day would you like to check in? Sentence6: TR2950 will arrive at 08:06, would that work for you? Sentence7: Actually, they both do offer free wifi and free parking. Alexander bed and breakfast is a guesthouse and the University Arms hotel is a hotel type. Do you have preference? Sentence8: I'd prefer a hotel. Can you book that for 6 people and 3 nights? Sentence9: Yes, can I get 6 tickets please and I'll need the reference number too Sentence10: the total fee is 226.8 GBP payable at the station and the reference number is : XYAOCTIY . May i help you with anything else. Sentence11: I am also looking for a place to stay that has 4 stars and is in the centre. Sentence12: Yes, I need to arrive by 8:45. Sentence13: Yes, could you try for a stay of 1 night? Sentence14: That is all I need. Thank you for your help! Goodbye! Sentence15: Starting saturday, either place is fine if available. Sentence16: We have two choices, alexander bed and breakfast which is in the cheap prince range and university arms hotel whic is in this expensive price range. Sentence17: The booking did not go through, can you book another day or a shorter stay? Sentence18: I do need free wifi included, so whichever of those has wifi is the best! Question: Who has spoken the sentence 2? (A) User (B) System

A:
Answer: (A) User
****