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

[EX Q]: Sentence1: I'd like to find some place to go on the east side of town. Sentence2: Thank you. Have a good day, goodbye. Sentence3: I can certainly suggest something for you. I have 10 options. Do you prefer an entertainment venue, or perhaps a museum or park, etc? Sentence4: Sounds great. That's all I needed. Thank you! Sentence5: I would prefer just anything in the east, can you give me the address and attraction type of one? Sentence6: No problem. How does the Funky Fun House sound? It is standard entertainment and it is located at 8 mercers row, mercers row industrial estate. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: How about the Alexander bed and breakfast in the centre? It is a cheap 4 star guesthouse with free internet and wifi. Sentence2: That sounds like it might work. Could you check availability for two people this weekend? Sentence3: Does this place include free parking? Sentence4: I am unsure at this time. Sentence5: I am glad to help. Have a nice day. Bye. Sentence6: I live in the centre of town and want to see if I can find a reasonable room for my parents to stay while they are visiting. Sentence7: Okay, would you like some more information about that hotel? Sentence8: You have been very helpful. I have everything I need, thanks. Bye Sentence9: The address is 56 saint barnabas road. Sentence10: What day are they arriving, and how many nights are they staying? Sentence11: The alexander bed and breakfast is a cheap, 4 star guesthouse in the centre area, It has wifi and parking. Does this fit your needs? Sentence12: Can you tell me what the address is? Question: Who has spoken the sentence 4? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: I would like to be in the centre. Sentence2: Can you help me find a really nice and expensive chinese place in town? Sentence3: The phone number for All Saints Church is 01223452587. Can I help you with anything else? Sentence4: How about all saints church? It has free admission. Sentence5: I'd like to go between All Saints Church and Tang Chinese by 2:30. Sentence6: Sure. The postcode is cb58bs. Can I help you with anything else? Sentence7: Booking completed! Booked car type : red skoda Contact number : 07139106461 Sentence8: thanks thatnis it for today Sentence9: Can you tell me their postcode as well? Sentence10: How about tang chinese? They are located at Napier Street City Centre. Sentence11: Any luck with the taxi yet? Sentence12: Sounds interesting. What is their phone number? Sentence13: i want information about attractions in the centre Sentence14: I can help you with that. Where would you like the taxi to pick you up? Sentence15: Okay, no problem! I hope you have a great visit! Sentence16: Can you tell me their phone number? Sentence17: Let me find a taxi for you. Sentence18: I also want to book a taxi to commute between the two places. Sentence19: Okay! What area of town would you like to dine in? Sentence20: Sure thing, here you go 01223357187 Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]:
Answer: (B) System