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

Q: Sentence1: 5 nights, please. Sentence2: Sure. Please book five tickets for me and reply with the reference number. Sentence3: It's booked and your reference number is LFE8G8CE . The address is 154 chesterton road and postcode is cb41da. Anything else I can do for you? Sentence4: Where will you be departing from? Sentence5: Enjoy your visit. Please give us a call if you need further assistance. Sentence6: 5 people starting on Sunday. Sentence7: Yes, what area would you like to stay in? Sentence8: Great, let's book that one. Please send me the address, postcode and reference number. Sentence9: Booking was successful, the total fee is 22 GBP payable at the station. Reference number is : BUBQRD4R . Sentence10: Yes I also need a train that leavers after 12:00 going to ely. Sentence11: There is the Acorn guesthouse in the moderate price range and 4 stars. It also has free wifi and parking. Sentence12: There is no train leaving 12:00, but train TR5484 leave 13:50 do you want to adjust your time? Sentence13: Don't care. but I'd like a place that's Moderately priced and offers free WiFi. Sentence14: East London. Thanks Sentence15: How many days do you plan on staying? Sentence16: That is all I need, good bye. Sentence17: How many people would you like it booked for and for what days please? Sentence18: Hi, I am hoping to find a 4 star hotel room. Can you recommend one for me? Question: Who has spoken the sentence 9? (A) User (B) System

A: Answer: (B) System
****
Q: Sentence1: How about the Gonville Hotel located in the centre area of town? Sentence2: Between $100-$300 per night. Sentence3: I have several available. What is your price range? Sentence4: Ok, I have several hotels. Any particular location? Sentence5: Location doesn't really matter as long as there's free parking available. Sentence6: What is their postcode? Sentence7: I need a place to stay with free wifi. Sentence8: Their postcode is cb11Iy, address gonville place, phone 0122336661 they have wifi and free parking too. Would you like me to book this for you? Question: Who has spoken the sentence 4? (A) User (B) System

A: Answer: (A) User
****
Q: Sentence1: Okay great thank you. Sentence2: thanks, i also need a taxi to get me from the hotel to the restaurant. can you help? Sentence3: Of course, could you please give me the name of the Hotel you are looking for? Sentence4: Yes, I'm also looking for a restaurant called the rice boat. Sentence5: Have a great day! Sentence6: Rice boat is an expensive Indian food restaurant in the west, located at 37 Newnham Road Newnham. Sentence7: you will be riding in a grey audi and the contact number is 07939088518 Sentence8: I'm looking for the Express by Holiday Inn. Sentence9: This hotel is on the east side of town, rated 2 stars, and in the expensive pricerange. Do you need more information or can I book a room for you? Sentence10: I certainly ca. Your reservation number is ZK68BCKQ . Sentence11: Okay, I was able to get you the booking. Your reference number is SQ6GX5Q5 . Can I help you with anything else? Sentence12: Thank you! Please book a room for 6 people for 5 nights, starting on Friday. Sentence13: Can you help me out with some information on a specific hotel? Sentence14: Could you book me a setting there for the same group and day at 17:30? Question: Who has spoken the sentence 12? (A) User (B) System

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