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

Example input: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Example output: Answer: (A) User
Example explanation: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system
Q: Sentence1: How about one with a 4-star rating? Sentence2: TR0767 leaves at11:50 on Friday morning, arriving 12:07. Price is 4.40 pounds. Would you like me to book a seat? Sentence3: I am happy to help, can you please give me some information on what you would like me to search for? Sentence4: I am planning a trip in Cambridge Sentence5: Okay. Great. Can I have the reference number please? Sentence6: Your reference number is IWVOH34O . Sentence7: I will complete that booking for you now. Sentence8: Yes please. Book it fror friday, 2 peopl. I'll need a reference number as well please. Sentence9: Ok. Thanks. Nothing further. Sentence10: We have 10 trains that leave every two hours starting at 5:50, any time preferences? Sentence11: The one in the west will be fine. I'll need the address, postcode, and if they have free internet. Sentence12: I'm looking for a place to stay in Cambridge in the expensive range with a 0 star rating that includes free parking. Sentence13: Sure their address kingfisher way, Hinchinbrook Business Park, Huntingdon and the postcode is pe296fl and they do have free wifi. Sentence14: Great, thanks! Also, will you please find me a train that goes to Ely, leaving on Friday? Sentence15: It was a pleasure to assist you. Have a good day. Sentence16: There are 2 hotels that meet your needs, one in the west and one in the city centre. Do you have a preference on where you'd like to stay? Sentence17: I need to leave after 10:30. Sentence18: I'm sorry, I'm not seeing any options for an expensive place to stay with a 0 rating and free parking. Should I look for something else? Question: Who has spoken the sentence 1? (A) User (B) System
A:
Answer: (B) System