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

Ex Input:
Sentence1: 1 person, plese. Sentence2: Sorry, I couldn't find any restaurants that fit that criteria. Sentence3: O booked you at 12:15 to give you extra time, look for a red tesla, they cbr at 07079296786, any other questions? Sentence4: Okay, you're all set with a reservation at La Tasca on Wednesday at 12:30! The reference number is F8VGULKB . Sentence5: Are there any Spanish restaurants available? Sentence6: What time would you like to leave or arrive? Sentence7: I'm sorry, I forgot some of my friends couldn't make it. It will just be myself, and I need the reservation for Wednesday. Sentence8: I have you booked at the Acorns Guesthouse the reference number is QQ2N4M7W . Can I help you with anything else today? Sentence9: I need help finding a 4 star hotel Sentence10: Sorry to tell you this but we actually have no Jamaican restaurants in cambridge. Maybe you would prefer another type of food Sentence11: La Tasca is at 14 - 16 Bridge Street, CB21UF. La Raza is at 4 - 6 Rose Crescent, CB23LL. Would you like a reservation at one of them? Sentence12: That is all I need, thank you, goodbye! Sentence13: Is there one in the centre of town maybe? Sentence14: Goodbye and thank you for using our service! Sentence15: Yes, please. I would like its address and postal code. Sentence16: La Tasca sounds interesting, can you book a table for my group at 12:30? Sentence17: How many people are in your group? Sentence18: no, but I need free parking and wifi. Sentence19: I have 19 hotels in Cambridge that fit those requirements. Do you have a price range in mind? Sentence20: nah, I just need it for 4 nights starting from wednesday. maybe look at moderately priced hotels? Sentence21: I have several listed is there a particular area you would like? Sentence22: I would want to be able to arrive to the restaurant by the time booked, 12:30! Sentence23: How many of you will be staying there? Sentence24: Yes, please. I'm looking for a jamaican restaurant that is moderately priced. Sentence25: There are two spanish restaurants. Would you like more information? Sentence26: i also need a taxi to commute between the two places Question: Who has spoken the sentence 12? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Can you tell me more about gourmet burger kitchen? Where is it? Sentence2: No, that's all I need for now. you've been very helpful. Thanks. Sentence3: They are in the towns centre. Expensive but worth every penny. Would you like to book a table? Sentence4: How about the postcode and attraction type for Byard Art? Sentence5: Thanks, I'm all done here. Sentence6: I have that table reserved. Your reference number is K94DWSQN . Can I help you with a taxi or hotel room? Sentence7: You're welcome. Have a great day! Sentence8: Unfortunately, we do not have information on several of them. But, Byard Art, Wandlebury Country Park, and Sheep's Green and Lammas Land Park are all free admission attractions. Sentence9: I have booked you a taxi that will get you there by 13:15. The car type is a blue Tesla and the contact number 07664553144. Can I do anything else? Sentence10: Enjoy yourself.You can call us if you need anything else Sentence11: no, not really. What are entrance fees on the 8 attractions? Sentence12: What can you tell me about attractions in the south part of town? Sentence13: I need a taxi from Byard Art that will get us to the restaurant on time. Sentence14: We have 8 attractions in the south part of town. Do you have a preference of type? Sentence15: Yes please, a table for 6 people at 13:15 on Tuesday would be amazing. Sentence16: Postcode, cb21sj, and the type is museum. Is there anything else I may help you with? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Possibly, what time does it arrive at London Liverpool Street? Sentence2: What is your destination? Sentence3: Thanks so much for using Cambridge TownInfo centre today! Sentence4: I was able to find it, would you like to book a room there? Sentence5: I'm headed to London Liverpool Street from Cambridge. Sentence6: It takes the TR7057 88 minutes to go from Cambridge to London Liverpool Street. Sentence7: Thank you, I think that is it, enjoy your day! Sentence8: There are 8 trains fitting your criteria. TR7057 leaves Cambridge on Friday at 09:59. Would you like to book this train? Sentence9: No problem! Is there anything else I can help you with? Sentence10: Great, thanks. I am also looking to book a train for this Friday. I am hoping to leave after 08:45. Sentence11: Thank you for your help, I'll pick up tickets at the station. Sentence12: All right, you have a reservation beginning Sunday for 5 nights for a party of 8 at Rosa's. Your reference number is 8E3J63R1 . Sentence13: I'm looking for Rosa's Bed and Breakfast in Cambridge. Sentence14: What's the travel time on that trip? Sentence15: Yes please, for 5 nights starting Sunday, there will be 8 people in my party. Sentence16: The 9:59 train leaves Cambridge and arrives at London Liverpool Street at 11:27. Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:

Answer: (A) User