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

[Q]: Sentence1: That's all I need for now. thank you very much. Sentence2: Addenbrookes Hospital. The contact number for the paediatric intensive care unit is 01223217715. Sentence3: Can I get the postcode as well? Sentence4: Where's the closest hospital with a paediatric intensive care unit? Sentence5: You are welcome! Have a great day! Sentence6: It looks like the Post Code is CB20QQ. Question: Who has spoken the sentence 5? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: There's a Parkside Police Station in town, right? Sentence2: Thanks! Also, can you give me the exact address to the station? Sentence3: The only address listed is Parkside, Cambridge. It does not give an exact address, I'm sorry to say. Sentence4: I will also need the postcode please. Sentence5: No, that's all thank you Sentence6: Sure, the postcode is CB11JG. Sentence7: Yeah, sorry for the inconvenience. Can I do anything else for you though? Sentence8: Yes, it is located at Parkside, Cambridge. Sentence9: Wow. That is very odd. Sentence10: Thanks. I need the phone number and postcode too. Sentence11: Sure thing. They are located in Parkside, Cambridge and the phone number is 01223358966. Sentence12: You're welcome, have a great day Question: Who has spoken the sentence 9? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: I am sorry, but that hotel does not have a 4 star rating, would you like another option? Sentence2: Booking was successful for the royal standard. The table will be reserved for 15 minutes. Your reference number is : 4W94X4GE . Is there anything else I can help with? Sentence3: Yes, I am looking for a gastropub near the hotel. Sentence4: Great! I think that's all I need today. Thank you for you help! Sentence5: How about Royal Standard? It's a gastropub located at 290 Mill Road City Centre Sentence6: express by holiday inn cambridge meets your criteria. Sentence7: I've booked you a taxi from "a and b guest house" to "royal standard." The car is a blue audi and the Contact number is 07009978153. Sentence8: Thank you I also need a taxi between the two places please to get to the restaurant by 11:45 Sentence9: Great, you're booked with reference number Y5Z7GN2R . Anything else I can help you with? Sentence10: Is there a 4 star guesthouse in the east? Sentence11: Can I book one of them for 8 people for 4 nights starting tuesday and get the reference number? Sentence12: Excellent. One more thing: is that in the expensive price range? Sentence13: there are 5 four star guesthouses in the east Sentence14: Yes, royal standard is an expensive gastropub. Sentence15: Does it have 4 stars? Sentence16: Terrific. Can you book a table for the same group of people at 11:45 on the same day and provide me with the reference number? Sentence17: Thank you for using our service. Please contact us again if we can be of further assistance. Sentence18: I would like to stay at a hotel in the east, please. Question: Who has spoken the sentence 7? (A) User (B) System
[A]:
Answer: (B) System