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

Ex Input:
Sentence1: Goodbye. Sentence2: Nandos sounds great. Thank you. Sentence3: Goodbye. Sentence4: thank you good bye Sentence5: Yes, I'd like a restaurant that serves portuguese food. Sentence6: nandos is the only restaurant i can find in the south that serves portuguese. Sentence7: Hi. I'm trying to find a good restaurant in the south part of town. Sentence8: There are several good restaurants in the south part of town. Do you have a preference for the type of food or price range? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Yes, all of the listed entrance fees are 5 pounds. The Club Salsa is nice. Sentence2: Have fun! Goodbye! Sentence3: Club Salsa's address is 1 Station road and their phone number is 07782218745. Sentence4: No thanks. That's it. Sentence5: Location doesn't really matter. Is there an entrance fee? Sentence6: Yes, would you like to find a nightclub in the centre or south part of town? Most of them are in the centre. Sentence7: Club Salsa sounds right up my alley. Can I get the address and phone number please? Sentence8: Can you find information about nightclubs? Sentence9: You're welcome. Can I help you with anything else? Sentence10: Okay, great! Thanks for your help! Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I need a departure are and destination please Sentence2: I have both cheaply and moderately priced guesthouses to choose from. Do you have a preference? Sentence3: I also need a train. Sentence4: I have booked you for 2 people for 5 nights at acorn guest house. The address is 154 chesterton road and their phone number is 01223353888. Will there be anything else? Sentence5: I am looking for information in Cambridge Sentence6: must have free wi fi Sentence7: Great, Can you please book me for 2 people and 5 nights starting tuesday? Sentence8: We need to find a guesthouse in the north for our stay. Sentence9: If you need to contact the police you can phone them at 01223358966. Or, is there some specific information I can help you with? Sentence10: There's quite a few. I personally like the acorn guest house. It's 4 stars with internet access. It's located at 154 chesterton road. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:

Answer: (A) User