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

Sentence1: I would like to arrive by 18:15. Sentence2: The TR0277 will get you there by 18:07. I can book you 2 tickets on that if you would like? Sentence3: I need two tickets. Sentence4: i'd recommend the oak bistro. their phone number is 01223323361. their postcode is cb21eg. Sentence5: Awesome. We're here 24/7 if you need us again. Thank you for using the Cambridge TownInfo centre. Have a great day! Sentence6: Yes. Are you departing or arriving in bishops stortford? Sentence7: two tickets will be fine, please. Sentence8: There are 7 restaurants in the Centre that serve British food, is there a price range you would like to stay in? Sentence9: I have 10 trains going to Bishops Stortford from Cambridge on Thursday. What time do you need to arrive? Sentence10: A nice place to eat that serves Austrian food. In the centre of town if possible. Sentence11: great! thanks. thats all i need. goodbye. Sentence12: I am so sorry no Austrian restaurants in that area, another food type perhaps? Sentence13: Okay, do you have any good restaurants serving British food? Sentence14: Do you book trains for the bishops stortford? Sentence15: TR0277 two tickets. the total fee is 20.2 GBP payable at the station. Reference number is: 00QGJ7W5 . Will there be anything else I can help you with today? Sentence16: I am going there from Cambridge on Thursday. Sentence17: Any is fine, can I get the phone number and postcode of one you'd recommend? Sentence18: TR0141 will have you in Cambridge by 14:07. Question: Who has spoken the sentence 14? (A) User (B) System
Answer: (A) User