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

Q: Sentence1: Does it have internet? Sentence2: I can help you with that I just need to know what time you'd like to be picked up from the guesthouse? Sentence3: No, that is it. Thank you so much. Sentence4: I have 3 great guesthouses in the east. I recommend Warkworth House. Would you like to book a room? Sentence5: The Yu Garden is a Chinese restaurant in the East, would you like to book a table? Sentence6: How about a Chinese restaurant? Sentence7: There are no australasian restaurants in the east. Would you like to try a different cuisine or can I check another area for you? Sentence8: Can i get the address and number to Yu Garden? Sentence9: I'm happy to be of service, and thank you for using the Cambridge TownInfo Centre! Sentence10: I would like to leave at 5:45. Sentence11: Yes it does. Would you like to make reservations? Sentence12: Hi, I am looking for a nice moderately priced hotel located in the east. Sentence13: Okay, thanks. I'm also looking for a place to eat that serves Australasian food. Can you help me with that? Sentence14: Warkworth does offer internet. Sentence15: Yes, the address is 529 Newmarket Road Fen Ditton and the postcode is cb58pa. Sentence16: The taxi will pick you up at the guesthouse at 05:45 and will be in a white lexus. Their contact number is 07730745339. Is there anything else I can help you with? Sentence17: Thank you. I also need a taxi to get between the two places. Sentence18: Maybe. Does it have 4 stars? Question: Who has spoken the sentence 3? (A) User (B) System

A: Answer: (B) System
****
Q: Sentence1: Would you like to book a room at the acorn guest house? It is in the moderate price range like the Hamilton Lodge. Sentence2: Nope. I think that is all I need. Thanks for your help! Sentence3: Yes that will be fine. Sentence4: Your booking was successful. Your reference number is 1WRSIG9U . Is there anything else I can help you with? Sentence5: Happy to help. Have a great day! Good-Bye! Sentence6: I am sorry the booking was unsuccessful,can I help you find another place in the same area? Sentence7: Yes please. I'd like a room for 5 people on Monday for 5 nights. Sentence8: Yes, this guesthouse is open. Do you need help with booking? Sentence9: How about another hotel in the same price range? Sentence10: Howdy! Is the Hamilton Lodge still open? Question: Who has spoken the sentence 3? (A) User (B) System

A: Answer: (B) System
****
Q: Sentence1: Nope, that's it. Thanks for your help. Sentence2: Booking was successful. The table will be reserved for 15 minutes. Reference number is : QLK6MOBC . You are all set! Anything else I can help with? Sentence3: The Ugly Duckling is a fantastic Chinese place in the center of town. It's expensive, but worth it. I'd be happy to book a table, if you like. Sentence4: Okay, I'd be happy to book that for you. Where would you like to go? Sentence5: Great. I'm also looking for information on the Ugly Duckling restaurant. Sentence6: I'm going to Cambridge from New Street in Birmingham Sentence7: I need to make sure that I will arrive by 09:15? Sentence8: Yeah, that train will get you there by 8:23. Sentence9: I want a train that leaves on wednesday. Sentence10: Yes, please! I'd like a table for 1 at 15:15 on the same day as the train. Sentence11: You are welcome. Enjoy your stay in Cambridge. Bye. Sentence12: How about train TR0014, leaving at 05:40? Question: Who has spoken the sentence 5? (A) User (B) System

A:
Answer: (B) System
****