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

Ex Input:
Sentence1: Yes, what type of attraction is Cherry Hinton Water Play? Sentence2: Please book it and send me the confirmation code. Sentence3: Again thank you and have a great day. Sentence4: Thanks I'm also looking for a train that leaves on Thursday. Sentence5: Just one seat. Sentence6: OK, what are your departure and arrival stations, and what time do you want to travel? Sentence7: Before i book it, could you confirm the number of seats you need? Sentence8: You're welcome! Is there anything else I can help you with? Sentence9: It is a park. Sentence10: Excellent, I can't wait to visit it! Thank you. Sentence11: I am looking for information about the the Cherry Hinton Water Play Sentence12: excellent, have a great day! Sentence13: I'd like to go to Cambridge via Broxbourne. I'd like to leave on Thursday and arrive no later than 12:00. Sentence14: That is a free park on the east side of town. They are located at Cherry Hinton Hall on Cherry Hinton Road. Their phone number is 01223446100. Sentence15: I have on that arrives at 11:32. Would you like me to book that for you? Sentence16: Perfect thanks for the help thats everything I need! Sentence17: Well I glad i can help enjoy your stay ! Sentence18: Your booking was successful! The reference number is 698RE4W1 . The total fee of 17.89 is payable at the station. Question: Who has spoken the sentence 17? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: the post code is cb41er. what day would you like the reservation for? Sentence2: You're quite welcome. Thanks for contacting the Cambridge TownInfo Centre and have a great day! Sentence3: The Ashley Hotel sounds fine, can you book that for me please. Also, I need the postcode of that hotel as well. Sentence4: I'm looking for a hotel in the north side. Sentence5: Ashley Hotel and Lovell lodge are both available Sentence6: Actually, I don't need a booking. Thanks. Have a nice day. Sentence7: I have many options in the north. All are in the cheap to moderate range. Do you have any further requirements? Sentence8: I'd like a 2 star hotel with free parking. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Yes please. I will need a table for 6 at 18:15 on Friday. Sentence2: There are twenty-one moderately-priced restaurants located in the centre of town. Would you like me to make you reservations at one of them? Sentence3: What trains leave Friday from Bishops Stortford? Sentence4: Great. Can I also get a restaurant in the centre of town in the moderate price range? Sentence5: I have ten train departures fitting this criteria. Each leaves on friday on the :29 of the hour from 05:29 to 23:29. Would you like me to book one of these? Sentence6: Tickets on this train are 10.10 GBP each. Sentence7: You're quite welcome. Have a great day! Sentence8: Booking was successful to dine at the cow pizza kitchen and bar. The table will be reserved for 15 minutes. Your reference number is 3V4CILV4 . Is there anything else needed? Sentence9: How much is the ticket? Sentence10: No, thank you very much for your help. Sentence11: I need to arrive in cambridge by 11:15 which one would work best? Sentence12: The TR3450 leaves at 07:29 from bishops stortford and arrives in Cambridge by 08:07. Is that okay? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:

Answer: (B) System