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

Ex Input:
Sentence1: I have your taxi booked. Look for a blue volkswagen, contact number 07655267463. Is there anything else I can help you with? Sentence2: I need to book a place to stay with a star of 4. I don't need free parking. Sentence3: Can you please provide me with the address, telephone number and the cost of admission. Sentence4: Thank you. Enjoy your stay Sentence5: I now need a taxi to get to the church from the hotel. I would like to leave the hotel by 15:45. Can you book that for me? Sentence6: I don't care about location, just would like a moderate price with 4 stars please. Sentence7: We have 44 attractions in the centre of town Broughton House Gallery is a museum we have available. Sentence8: We have 11 in the moderate range. They are all a guesthouse accommodation. Would you like one of these? Sentence9: I need one with free wi-fi. Sentence10: I have you booked. The reference number is WPGQ4ADJ . Sentence11: After that I'm also going to need the reference number. Sentence12: OK, now can you tell me about some of the attractions in the center of town? Sentence13: I would also need to book it for 4 nights. Sentence14: No, that is all. Thanks so much. Bye. Sentence15: One person, and I'd like to arrive on Tuesday. Sentence16: We have over 20 fine hotels. Do you have any preferences of cost or location? Sentence17: How long do you want to stay? Sentence18: Can i book one on tuesday? Sentence19: OK, let me see what I can do. Sentence20: How about All Saint's Church at 01223452587 in the centre? It's free. Sentence21: before I look for that, could you let me know how many people are staying and what day you'd like to arrive? Sentence22: I have two: a and b guesthouse in the east and avalon in the north. Would one of these work for you? Question: Who has spoken the sentence 18? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Yes I have it for you, its 0123357187 Sentence2: Yes, I will need the reference number please. Sentence3: Will you be needing a reference number? Sentence4: Do you have any cuisine preferences? Sentence5: any of them. book a table for 2 people at 18:45 on wednesday Sentence6: Sure. Would you like to reserve a table at Ugly Duckling, Tang Chinese, HK Fusion, or Sesame Restaurant and Bar? Sentence7: I'm looking for a luxurious dining experience in the centre of Cambridge. Sentence8: I would really like asian oriental food tonight. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I'll be heading to Broxbourne. Sentence2: 7 people please. Sentence3: I have 2 Thai restaurants in Cambridge, both are very expensive. I have one in West and the other in the Centre, do either of them sound good? Sentence4: I also need to leave via train from cambridge after 9:15 on sunday, can you help me with that? Sentence5: thank you and enjoy your stay in Cambridge! Sentence6: I would like it booked and need the reference number. Sentence7: Yes, there are 7 of us who will be going. Sentence8: Your reservation is booked. The reference number is L84LJ43R . Sentence9: Please book a table for 15:45 on Thursday. I would like the thai restaurant in west cambridge. Sentence10: Great!! Thank you for all your help. Sentence11: I am looking for a very nice Thai restaurant in Cambridge. Sentence12: Sure! Where will you be going? Sentence13: Alright, I see 14 trains here. Would you care for a booking? Sentence14: Would train ID TR9580 leaving at 10:01 and arriving at 11:01 work for you? Would you like tickets for the same party of 7? Sentence15: How many people would you like a table booked for at Sala Thong? Sentence16: I have you booked for 7 on that train, the reference number is PP68MYLF . Question: Who has spoken the sentence 12? (A) User (B) System

Ex Output:

Answer: (A) User