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

Ex Input:
Sentence1: What is the address and postcode? Sentence2: That's all I need. Thanks, good bye. Sentence3: The address is Parkside, Cambridge and the postcode is CB11JG. Sentence4: The telephone number for the Parkside Police is 01223358966. Sentence5: Glad I could be of service. Sentence6: I'm looking for a the Parkside police station. Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: What day are you travelling? Sentence2: You are very welcome. Enjoy your day too. Bye. Sentence3: I'd like to book 3 tickets on the train arriving at 19:08, please. And would it be possible to have a reference number for the booking? Sentence4: I will need to leave from Cambridge if that's ok Sentence5: I have a train that arrives earlier at 18:08 and one that arrives just before your specified time at 19:08. Sentence6: Sure. Where will you be leaving from? Sentence7: I was wondering if you could help me in finding a train to the airport. Sentence8: OK, you have 3 tickets reserved on TR4447, departing Cambridge at 18:40, arriving Stansted at 19:08. Total fee is 30.29 GBP. Reference #5VRJSMSE . Will that be all today? Sentence9: Yes, it will. Thanks so much. Have a nice day. Sentence10: On Wednesday. I need the train to arrive by 19:15. Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: There are 3 hotels in the west. Two are cheap and one is expensive. Do you have a price preference? Sentence2: please find me a good cinema to go Sentence3: There are 2. Would you like to stay in a guesthouse, or in a hotel? Sentence4: They have a very flexible schedule. Please give me a day of the week and I will look for you. Sentence5: for how many days and starting when do i book? Sentence6: Let's go with the cheap one. Sentence7: The cambridge belfry is in the cheap range, with 4 star rating has internet and parking. Should I book a room for you? Sentence8: One person, please. Sentence9: Can I have the postcode and phone number? Sentence10: Yes, that would be wonderful. Sentence11: A hotel would be perfect! Sentence12: What is the price range? Sentence13: how many people should i book for? Sentence14: I don't actually need to book a room right now, can you just give me the price range that is in? Sentence15: What days are available? Sentence16: We have 21 hotels and guesthouses ranked 4 stars. Do you have a particular area of the city you'd like to stay in? Sentence17: I would like something in the west. It doesn't need to have internet. Sentence18: Sure. The postcode is CB11PS and the phone number is 08712240240. Sentence19: Ok. So that is the cambridge belfry. Should I make a reservation for you? Sentence20: As I mentioned before, the Cambridge Belfry is in the cheap range. Will there be anything else for you today? Sentence21: I'm also looking for a place to stay in. Can you find me a 4 star place? Sentence22: what about vue cinema? It's located in the centre. Sentence23: For 1 day Sentence24: No. I believe that is all. Thank you for your assistance. Sentence25: Thank you for allowing me to assist you. Feel free to call back for more information. Sentence26: What day would you like to check in? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User