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

[EX Q]: Sentence1: Please contact the Parkside Police Station at 01223358966. Sentence2: Help me please, i just been robbed and don't know what to do. Sentence3: Thanks, that's all. Good bye. Sentence4: Thank you for using our services. Sentence5: The postcode is CB11JG. Do you need further assistance? Sentence6: Thank you, what's the postcode? Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I need a place to stay with free wifi. Sentence2: Location doesn't really matter as long as there's free parking available. Sentence3: Ok, I have several hotels. Any particular location? Sentence4: How about the Gonville Hotel located in the centre area of town? Sentence5: What is their postcode? Sentence6: Their postcode is cb11Iy, address gonville place, phone 0122336661 they have wifi and free parking too. Would you like me to book this for you? Sentence7: I have several available. What is your price range? Sentence8: Between $100-$300 per night. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: It will be going to the chinese restaurant your booked. Sentence2: A black Audi will pick you up, contact number is 07658935119, as your taxi. Is that all you need today? Sentence3: Are there any colleges in the centre of town? Sentence4: Goodbye. Enjoy your meal. Any further questions feel free to contact us again. Sentence5: Yes. Their phone number is 01223367755. Sentence6: No, thank you. I need to consult with my friends first. Can you please give me their phone number? Sentence7: Do you have preferences in the attraction type? Sentence8: Yes I have many, would you mind a entrance fee? Sentence9: Are they are in the centre of town? If so, do they have an entrance fee? Sentence10: I'm also looking for a cheap Chinese place to eat at. Sentence11: What's the postcode and entrance fee, if any, for your favorite one? Sentence12: Hi, I am looking for information on places to go in town please. Sentence13: There are three cheap chinese restaurants in the city centre. I suggest the Rice House as it's closest to the college. Would you like me to make a booking? Sentence14: okay all I need is your destination. Sentence15: Great I also need a taxi that will leave the attraction by 16:15 Sentence16: Christ's College is on Saint Andrew's Street, postcode cb23bu and has no admission fee Sentence17: The Cherry Hinton Village Centre offers multiple sports. Would you like the phone number or address? Sentence18: Yes, that's it. Thank you for all your help today. Goodbye. Sentence19: It is located in the east of town but there is no entrance fee listed. Sentence20: one that offers all indoor games Question: Who has spoken the sentence 18? (A) User (B) System
[EX A]:
Answer: (A) User