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

[EX Q]: 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 A]: Answer: (B) System

[EX Q]: Sentence1: No, that's all the information I need. Thanks! Sentence2: You can reach them by phone at 01223312598. Anything else I can help with? Sentence3: Booking was successful. Reference number is : T212RFL5 . Sentence4: Yes, Gourmet Burger Kitchen has North American cuisine and is expensive. It is located in the City Centre. Sentence5: That sound perfect. Could I make a booking for 6 people? Sentence6: I need help finding a guesthouse to stay at. Sentence7: I'd like the east part of town please. Sentence8: Ok great, have a wonderful day! Sentence9: Do you know of a restaurant by the name of gourmet burger kitchen? Sentence10: Of course! What day and how many nights? Sentence11: can you tell me the phone number please Sentence12: Warkworth House is a great place. They are rated 4 stars, moderately priced and offer free parking and internet. Sentence13: How many days will you be staying? Sentence14: I have a number of different guesthouses available. Do you want to stay in a particular part of town? Sentence15: I'll be starting my stay on this coming Sunday. Sentence16: 5 nights please. Question: Who has spoken the sentence 8? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: I need help finding a place to dine that is very expensive and is located in the centre. Sentence2: Just to be certain, does kymmoy share the same area and price range as Bedouin? Sentence3: Can you book that for me then? Sentence4: Thank you very much for your help. Sentence5: Yes it most certainly does. Sentence6: Booking was a success. It'll be at kymmoy and the reference number is X651IF9F . Sentence7: Unfortunately Bedouin doesn't have anything available. Would you like me to keep going down the list? Sentence8: I will just take the first one on the list. Can you make a reservation for 5 at 16:00 this Tuesday? Sentence9: Yes the next one down the list Sentence10: You're welcome. Good-bye. Sentence11: There are a variety of restaurants that are expensive and are located in the centre. Is there a food type that you are interested in? Sentence12: You're welcome. Will you be needing anything else today? Sentence13: Yes your booking reference number is X651IF9F . Sentence14: No that will be all. Thank you for all of your help. Question: Who has spoken the sentence 4? (A) User (B) System
[EX A]:
Answer: (A) User