You will be given a definition of a task first, then some input of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Is there a time you would like to arrive by? Sentence2: Your search engine does not include the restaurant I've inquired about. Sentence3: The TR0117 leaves at 19:59 and arrives at 21:27. Would you like me to book it on this train? Sentence4: I am leaving cambridge to go to london liverpool street. Sentence5: Do you have the phone number of the restaurant? Also, what area of town is it in? Sentence6: Yes could I also have their address? Sentence7: The Gandhi is in the city centre, and their phone number is 01223353942. Can I help with anything else today? Sentence8: Uhm? Do you have any info about the Gandhi? I'd like the phone number, address, and area. Sentence9: That's all I needed about the train I also need some information on a restaurant called The Gandhi Sentence10: I just need one ticket. Sentence11: No preference on arrival. As long as it leaves after 18:45. Sentence12: Can you tell me where you want to depart from and want to go to? Sentence13: Sure. The address is 72 Regent Street City Centre. Is there anything else I can help you with today? Sentence14: The Gandhi is located at 72 Regent Street City Center and offers cheap Indian cuisine. Sentence15: Thank you for contacting Cambridge TownInfo centre. I hope you have a pleasant trip! Goodbye! Sentence16: Hi, can you help me find a train that leaves after 18:45 Monday? Sentence17: How many tickets do you need? Sentence18: That will be all, thank you very much. Question: Who has spoken the sentence 8? (A) User (B) System
Output:
Answer: (A) User