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

Ex Input:
Sentence1: Thank you, can I get a taxi as well? I need to leave the hotel by 16:45 and go the restaurant. Sentence2: They are located Cambridge Leisure Park Clifton Way Cherry Hinton, cb17dy. Phone: 01223412430. Sentence3: Yes of course. It is rated 4 stars, is located in the west and is in the cheap price range. Would you like me to check availability for you? Sentence4: I actually dont need a reservation. just the address, postcode and phone number please. Sentence5: There are five great restaurants that match your criteria. I highly recommend cafe uno located in the centre of town. Sentence6: Hi, do you know of a hotel called finches bed and breakfast? Sentence7: Sure, I'll get right to that. First, can I ask the day you'd like to eat there? Also, what time and how many people? Sentence8: Okay, I've booked you a taxi leaving your hotel at 16:45. Look for a blue toyota, and if you need to contact them their number is 07524587523. Sentence9: The restaurant should serve italian food and should be in the expensive price range. The restaurant should be in the south Sentence10: My favorite restaurant would fit your criteria. It's called Frankie and Bennys. Would you like me to make you reservations? Sentence11: Sure. I'd need a room for 8 people, 5 nights starting on thursday. Sentence12: You're welcome! Have a wonderful day. Sentence13: Excellent, that's all the information I need, thank you for your help! Sentence14: Yes can you please make me a reservation? Sentence15: Booking was successful. Reference number is : 6AYRAXKH . Do you need anything else? Sentence16: Yes I am looking for a restaurant in the expensive price range that serves Italian food. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: No thank you. Can I have to phone number and postcode for that restaurant? Sentence2: I need a train to Kings Lynn. Sentence3: Thank you for using our service. Sentence4: The earliest train leaving after 17:00 on Friday leaves at 17:11. Would you like me to book this train for you? Sentence5: That would be TR9226 Sentence6: The phone number is 01223247877. It's located in the cb13nl postcode. Sentence7: Hmmm....how about an expensive restaurant serving gastropub food in the east? Sentence8: Thank you, goodbye. Sentence9: I am looking for a restaurant in the east that serves international food. Sentence10: No. There are two moderately priced restaurants with international cuisine in the centre of town. Would you like to hear about those? Sentence11: Book it, please. I need a single ticket. Sentence12: The the missing sock fits that criteria and is in the cheap price range. How else can I assist you? Sentence13: What day would you be wanting to travel? Sentence14: There's one restaurant that fits your requests, would you like me to book a reservation? Sentence15: Thanks again for the information! Sentence16: Have a great time. Sentence17: Have a great day as well. I think you'll love the Royal Standard. Sentence18: Thank you so much. Have a nice day! Sentence19: Friday please. From Cambridge leaving after 17:00 Sentence20: Can you give me the train ID on that one please? Sentence21: Is there one in the expensive? Sentence22: You have been booked for the train. Your reference number is 0UIC4MX9 . Can I help you with anything else? Question: Who has spoken the sentence 20? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: It does include internet along with free parking, shall I book you? Sentence2: Your best bet in the south is the Aylesbray Lodge Guest House. It's a moderately priced 4-star guesthouse. Sentence3: Alright I got your taxi and it will be a white Volkswagen and your contact number is 07658312417. Will that be all for today? Sentence4: from the hotel to the restaurant, then back. Sentence5: I was able to get a table for 4 at the good luck Chinese food takeaway on Monday at 13:00. Your confirmation number is 06YU8WNX . Sentence6: Great! I also need a place to stay in the same area as that restaurant, and I need free parking. Sentence7: I just need the address please. Sentence8: I need it to include free wifi. Sentence9: I would like Chinese food, please. Sentence10: Which one will be leaving from? Sentence11: It doesn't matter. Just book one for 4 people at 13:00 on Monday. I need the reference number. Sentence12: is there any type of food you would like ? Sentence13: I have two with an expensive price range and one in the cheap range. Would any of those work for you? Sentence14: Sure the address is 5 mowbray road. Sentence15: Both "The Good Luck Chinese Food Takeaway" and "Peking Restaurant" are in the expensive range in the south. Which would you like me to try first? Sentence16: Can you help me find a restaurant located in the south area? Sentence17: book the expensive one a table for 4 people at 13:00 on monday Sentence18: You're welcome, have a great day! Sentence19: No that is all. Thank you! Sentence20: Can you help me book a taxi to get between the two? Question: Who has spoken the sentence 17? (A) User (B) System

Ex Output:

Answer: (B) System