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

Sentence1: I'm departing from the oak bistro. Sentence2: I have the taxi ready for you Sentence3: I would like to leave after 17:00. Sentence4: Hi, I need a tax to queens' college please. Sentence5: What time would you like to leave? Sentence6: What is your departure site? Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: I hear its a pretty cool place. Can I get their postcode please? Sentence2: Yeah, I need a place to stay on the south side. 4 stars if possible. Sentence3: Postal is cb17sr, they do include internet and they can be reached at 01223240089, can I help with anything else? Sentence4: i am looking for a particular attraction. Its name is called soul tree nightclub. Sentence5: You're welcome! Have a great day! Sentence6: Can you book me a stay at The Aylesbray Lodge? Sentence7: The Soul Tree Nightclub is located in the area of centre. It has an entrance fee of 4 pounds. The phone number is 01223477900. Anything else? Sentence8: The postcode is cb23qf. Do you need anything else? Sentence9: You have a great day as well! Sentence10: Thanks for using our services. Sentence11: Sure! How many are staying, how many days, and what day do you want the stay to start? Sentence12: That was everything, thanks a lot! Sentence13: No I just need the postcode, phone # and if they have internet Sentence14: We have two guesthouses that are 4 stars in the south end, The Aylesbray Lodge Guest House is moderately priced, and Rosa's Bed and Breakfast is in the cheap range. Question: Who has spoken the sentence 12? (A) User (B) System
Answer: (A) User

Sentence1: The TR 1412 arrives at 15:32. Will this be okay? Sentence2: thanks again for choosing us Sentence3: Yes. Please book it for 1 person. Sentence4: I booked your ticket, and your reference number is DBWTXCO1 . Can I help further today? Sentence5: You have been helpful. Good bye. Sentence6: I am going to cambridge from Broxbourne. Sentence7: Where will you be traveling to? Sentence8: I'm looking for a train. The train should arrive by 16:00 and should leave on saturday. Sentence9: No that's it! Thanks so much! Sentence10: Thank you. Goodbye. Question: Who has spoken the sentence 2? (A) User (B) System

Answer: (A) User