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

Ex Input:
Sentence1: They are all moderately priced, but Avalon has free internet and four stars. Would that suit you? Sentence2: Yes, free wifi. No free parking though. Sentence3: That sounds good. Do they have wifi? Sentence4: Your table has been booked. The reference number is 3FOO64PM . Sentence5: Thank you I am also looking for a restaurant in the same area as the hotel serving expensive chinese food. Sentence6: please contact us again in the future. goodbye. Sentence7: There is Hakka located at Milton Road Chesterton would you like me to reserve it for you? Sentence8: I have three guesthouses to choose from. Do you mind they are in the north? Sentence9: I'm looking for a guesthouse to stay in and I don't need a free parking. Sentence10: 01223315702 and cb12dp. Sentence11: Perfect thats all I needed! Sentence12: This one is in the north a and b guest house Sentence13: Are there any moderately priced 3 star guesthouses in the west available? If not in the west, what about the north? Sentence14: Yes please. I need it for 8 people on Wednesday at 19:15. Sentence15: That's fine. Could I get their postcode and phone number? Sentence16: No that is okay, can you book the cheapest one for me please? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Hi, I am looking for a place to swim at in cambridge. Sentence2: The Yippee Noodle Bar is moderately priced. Would you like me to book you a table? Sentence3: That is all I need. Thank you. Sentence4: Thanks, also in the centre of Cambridge, could you find me an asian oriental place to dine? Sentence5: There are 4 options for asian oriental which range from cheap to expensive. Do you have a preference? Sentence6: May I have their phone numbers and the entrance fee for the pools. Sentence7: Unfortunately it is not available at that time or party size. Sentence8: I prefer moderate cost Sentence9: There are four, including parkside pools located in the centre. Sentence10: The number for parkside pools is 01223446100. You will need to call them to see if there is an entrance fee. Sentence11: You now have a 16:45 reservation for 7 at Yippee Noodle Bar. Your reference number is BOZ3MSRO . Sentence12: Let's try 16:45 then. Sentence13: You are very welcome. Goodbye. Sentence14: Yes I would like to book a table for 7 on Monday at 17:45 Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: The restaurant is all booked, reference is QAHKT2ZI . Sentence2: Yeah, and I would also like a taxi to get to the Meghna from the Tenpin by the reservation time, 12:30. I will need the contact number and car type. Sentence3: Tenpin is located on the south side, cambridge leisure park, clifton way. It's phone number is 08715501010. Do you wish to know more? Sentence4: Well I really need something on the west side. What about moderately priced Indian food? Sentence5: Sure. Can you book a table for 2 people at 12:30 on Sunday? I'll need the reference number please. Sentence6: Yes, could you tell me what type of attraction this is? Sentence7: Tenpin's number is 08715501010. I've booked you a taxi in a black ford, contact number is 07634445815. Can I help you with anything else today? Sentence8: Can you also help me find an attraction called Tenpin? Sentence9: There is "international" cuisine. Can you elaborate on what you mean by Crossover? There are places that serve what we call "Modern European" food. Sentence10: No, you have been very helpful. Thank you for everything. Sentence11: OK, great, I'm glad you are satisfied. Have a nice time! Sentence12: Are these places in the moderate price range? Sentence13: There is one Indian restaurant on the west side that is moderately priced. It is the Meghna. Would you like to book a table there? Sentence14: I have The Varsity or Bloomsbury restaurants that both serve international food, are located in the city center and are in the moderate price range. Sentence15: I just need to make sure the taxi will arrive at the restaurant by the booked time of 12:30. Sentence16: I have scheduled the arrival at 12:30. If you would like me to change the time, I can certainly do that. Sentence17: Sure, it's an entertainment venue, did you want their phone number? Sentence18: I'm looking for some places that serve crossover food. Question: Who has spoken the sentence 17? (A) User (B) System

Ex Output:

Answer: (B) System