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

Sentence1: Sure. What area would you like to stay in? Sentence2: yes postcode is cb39lh Sentence3: I'd like to stay on the westside, at a place with free parking and WiFi. Sentence4: Can you help me find a moderately priced place to stay? Sentence5: There is the Hobsons House. It is nice and is a 3 star guesthouse. Sentence6: Could you give me the postcode. Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

Sentence1: that is great! thank you for all your help. Sentence2: I need help finding an expensive restaurant in the centre, can you help me please? Sentence3: Thank you for calling and have a great day. Sentence4: I have found the backstreet bistro and the slug and lettuce, which one would you like more information on? Sentence5: Yes both are in the expensive price range Sentence6: I'd love to help. We have 33 expensive restaurants. Do you have a cuisine you'd prefer? Sentence7: Do anything of them serve gastropub food? Sentence8: I want to book a table for 4 people at 16:15 on a Tuesday please. Sentence9: Can I have the munber in your party and the day and time you would like to book? Sentence10: Great! Here is the address, 34 - 35 Green Street. Sentence11: Okay I was able to book you then at The Slug and Lettuce and your reference number is FSOF58OO . Sentence12: Yes, I'm looking for gastropub food. Sentence13: Thank you so much. That is all I need. Sentence14: Any one will be fine. I need the reference number please after its booked. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: I just need a phone number, thanks Sentence2: That is all I needed. Thank you for your help. Sentence3: You're welcome. If you ever need anything else just let us know. Sentence4: The number is 01223245151. Can I help you with something else? Sentence5: Addenbrookes Hospital is located at Hills Rd, Cambridge, is there a particular department you're looking for? Sentence6: Thanks again. Goodbye. Sentence7: welcome. at your service next time Sentence8: Yes, I am looking for a hospital that is here in town. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User