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

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: No, that's great, thanks. Sentence2: Your grey Honda is booked, and the contact number for the driver is 07817450562. Can I do anything else for you today? Sentence3: I need to actually arrive by 19:15. Sentence4: I will be departing from parkside police station. Sentence5: What time would you like to depart at? Sentence6: I'd like a taxi to the ugly duckling Sentence7: Where will you be departing from today? Sentence8: Have a nice day. Thank you for contacting us. Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: I have you booked at acorn guest house. Reference number is: IDAIIS1T . Sentence2: Brilliant! Thank you. Sentence3: You are very welcome, thank you and have a nice stay. Sentence4: There are quite a lot of them in that area. Do you have a price range in mind, or a particular star rating you'd like me to look for? Sentence5: I would prefer the north side of town please. Sentence6: I found 21 results. What side of town would you like? Sentence7: Would you try 1 night for 6 people on Sunday, please? Sentence8: No, you have been most helpful. Thanks, again. Sentence9: Unfortunately, booking within your criteria was unsuccessful at all hotels. Could you change your number of days? Sentence10: Not really. I just need a hotel that can accommodate 6 people for 5 nights, starting Sunday. Sentence11: Hi, can you help me find a guesthouse? I need free parking. Sentence12: Is there anything else I can help you with today? Question: Who has spoken the sentence 5? (A) User (B) System

Answer: (B) System