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

Ex Input:
Sentence1: Okay. Sorry for the mix-up. Thanks for checking. Sentence2: The travel time is 105 minutes and the cost is 37.80 pounds. Sentence3: I'm looking for something in the expensive price range. Sentence4: I would like to recommend Ugly Duckling. Would you like me to make reservations for you? Sentence5: Yes, a table for 1 at 20:30. But could you check the train again? I need to leave from Liecester, not arrive there. Sentence6: No you have been a great help, thanks. Sentence7: TR6723 leaves on monday from cambridge arriving in leicester at 16:06. Would that work for you? Sentence8: Now that your reservation at Ugly Duckling is taken care of, is there anything else I can assist you with today? Sentence9: We have 77 options available. Is there a certain day you want to travel? Sentence10: I have your table for 1 booked at the Ugly Duckling, Monday at 20:30. The reference number is YDG81NJ5 . Just a moment while I check on the train. Sentence11: Yes, I'd like to leave on Monday, going to Cambridge from Leicester. Sentence12: It was a pleasure to help you. Thanks for using our service. Goodbye. Sentence13: Okay, I also need a Chinese restaurant in the centre, please. Sentence14: Could I have the travel time and price for that particular train? Sentence15: Yes I can book that for you if you would like. Sentence16: I have 10 restaurants in the centre area that have chinese. Do you have a certain price range in mind? Sentence17: Yes, that would be great. Thank you. Sentence18: I am looking for a train that leaves Cambridge going to Leicester arriving by 16:15 Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I want the postcode Sentence2: The post code for the hospital is CB20QQ. Sentence3: Okay. Enjoy the rest of your day today Sentence4: Thank you. That was all I needed. Sentence5: Okay, Addenbrooke's hospital is located at Hills Road, Cambridge. Would you like the phone number? Sentence6: I am looking for the Addenbrookes Hospital Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Yes, I'm also looking for a hotel called the Lovell Lodge. Can you help me find information about this hotel? Sentence2: 2 stars. Yes it has free internet. Sentence3: Thank you, and have a nice day! Sentence4: It will be a grey Audi, and the contact number is 07486491137. Will that be all today? Sentence5: I am traveling to Cambridge and excited to see local tourist attractions. I am looking for a museum in the west part of town. Sentence6: Sure thing! Lovell lodge is located in the north at 365 milton road. What else would you like to know? Sentence7: Yes, that's all. Goodbye! Sentence8: There are 7 options, the first is cafe jello gallery located at 13 magdalene street, phone number 01223312112. Would that work? Sentence9: Does Lovell Lodge have free internet, and may I ask what star rating it has? Thank you for checking this for me. Sentence10: Thanks! I will also need to book a taxi to pick me up at the hotel by 24:30. Can you help with that? Sentence11: Yes, the postcode is cb30af. Entrance is free! What else can I help you with today? Sentence12: That would work well for me can I get their entrance fee and postcode as well? Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:

Answer: (A) User