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

Ex Input:
Sentence1: Booking was successful for Tuesday. Your Reference number is : 0J3V1091 . Sentence2: I'm sorry that doesn't seem to be available would you like me to try a different day or guesthouse? Sentence3: I'm sorry, there does not seem to be a historical site or hiking area in Cambridge. Is there anything else I can help with? Sentence4: Sure, I can help you with that. What section of town were you looking for? Sentence5: Doesn't really matter if they offer either of those or not. I just want it to be a 0 star hotel. Sentence6: Then the city centre north b and b is what you want, shall I book you? Sentence7: i don't really care about the area. Sentence8: I want to see local sights, can you help? Sentence9: I like hiking and seeing historical sites. Sentence10: Okay. Are you interested in hotels that offer internet and/or parking? Sentence11: Yes, I would like to find a hotel in the cheap price range? Sentence12: Yes, a guesthouse is fine. I was looking for zero stars and in the cheap price range. Sentence13: Great, thanks. I don't need anymore help. Goodbye! Sentence14: Yes, please book it for me. Sentence15: I'm sorry, I seem to be having an error in my system. You want a booking at the citycentre north B&B for 6 people, 5 nights, on Monday? Sentence16: I'm also looking for somewhere to go. Perhaps the college. Can you tell me the postcode for the college? Sentence17: City Cenrtree North and B is a cheap hotel,would you like me to book it for you ? Sentence18: Let book the same but on Tuesday instead. Sentence19: I'm happy I could help today. Goodbye! Sentence20: There are 18 colleges in town. I recommend christ's college in the centre. The postcode is cb23bu. Sentence21: Yes, there is a wide variety, do you have an activity type that your are interested in? Sentence22: Yes please, 6 people for 5 nights and we would be arriving Monday. Question: Who has spoken the sentence 21? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Your table is booked (ref# SCHAG4OI). What time do you need that taxi? Sentence2: The phone number is 01223240089, and the post code is cb17sr. Is there anything else I can assist you with? Sentence3: Thanks. That is all for now. Sentence4: Aylesbury odge guesthouse,I will book it for you,is there anything else I can do for you ? Sentence5: Are any a guesthouse? Sentence6: Okay. Please call us if we can help you further. We hope you enjoy your stay. Sentence7: the good luck chinese food takeaway is great. Shall i book it ? Sentence8: No I just need you to recommend one for me. Sentence9: I don't need you to book it, I just need the phone number and post code please. Sentence10: Hello, I am looking for a place to stay that has free parking in the South area. Can you help me with that please? Sentence11: What time would you like to dine, and how many will be in your party? Sentence12: Thanks, also looking for a restaurant in the same part of town in the expensive range. Can you recommend one? Sentence13: I'd like it to arrive in time to get us there before 12:15. Sentence14: Yes I have 3 guesthouses matching your criteria. Would you like to book one of them? Sentence15: Your black ford taxi has been booked and your contact number is 07103139053. Sentence16: I have four options ranging in price from cheap to expensive ranging in from 3 to 4 stars. Sentence17: There will be 6 of us. We'd like 12:15 on Saturday please. Sentence18: Please book the restaurant and I also need a taxi. Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I have a restaurant in mind that I'm trying to eat at tonight. Sentence2: Great, can you give me the name? Sentence3: Expensive price range, please. Sentence4: I would also like to find a place to stay with free wifi and parking. Sentence5: Thanks for using our service today! Sentence6: I can make that reservation for you. Sentence7: Yes it's called Rice House. I would like to make a reservation there for 7 people at 16:30 on Saturday. Sentence8: Ok. Can I have the reference number for that reservation? Sentence9: Can you tell me how much you'd like to pay? I have hotels in the centre of town that are expensive and cheap. Sentence10: Great. Your booking was successful and your reference number is ZIF2SFKO . Sentence11: I have two matching that criteria. Do you want me to choose? Sentence12: Okay, your room reservation is for Gonville Hotel located at Gonville Place. Your reference number is ROQAGG58 . Anything else you need help with today? Sentence13: No, that will be all. Thank you. Sentence14: Yes, please. Book that one, saturday, 4 nights, 7 people. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:

Answer: (A) User