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

Positive Example 1 -
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
Output: Answer: (A) User

Positive Example 2 -
Input: Sentence1: Guten Tag, I am staying overnight in Cambridge and need a place to sleep. I need free parking and internet. Sentence2: I have 4 different options for you. I have two cheaper guesthouses and two expensive hotels. Do you have a preference? Sentence3: No, but I'd really like to be on the south end of the city. Do any of those fit the bill? Sentence4: Sure. Does price matter? We can narrow it down and find exactly what you need. Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (B) System

Negative Example 1 -
Input: Sentence1: I am looking for a hotel named alyesbray lodge guest house. Sentence2: i have their info, what would you like to know? Sentence3: I would like to book a reservation for it. Can you help me with that? Sentence4: I sure can. First, I will need to know when you want your stay to begin and how many days you'll be staying. Also, how many people will be staying? Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (A) User

Negative Example 2 -
Input: Sentence1: Hi there! Can you give me some info on Cityroomz?. Sentence2: Cityroomz is located at Sleeperz Hotel, Station Road in the Centre area. It is a moderatley priced hotel with a 0 star rating. Would you like to book a room? Sentence3: Yes please. I need it for 7 people for 3 nights starting on tuesday. Sentence4: How many days would you like to book it for? Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (A) User

Now complete the following example -
Input: Sentence1: The TR0672 from kings lynn to cambridge leaves at 22:11. Would you like to book it? Sentence2: Of course. I'll be more than happy to help you find a hotel. What's the name of the hotel? Sentence3: This one will leave on sunday correct? Sentence4: You're welcome, have a great day. Sentence5: Um, well I should mention that we will be departing Kings Lynn and going to Cambridge. Sentence6: no. that does it for me. thanks. goodbye. Sentence7: The Acorn Guest House is located at 154 Chesterton Road. Would you like any additional information? Sentence8: I've booked your 2 night stay starting SUnday for 3 people at the Acorn guesthouse. Your reference number is JJBWZIGS . Can I help you further? Sentence9: It's the Acorn Guest House. Sentence10: The TR6549 arrives at 06:01. Is that too late? Sentence11: Could you book it for 3 people. It will be for 2 nights starting on the day we get there. Sentence12: I need to take a train to Cambridge, it would have to be late after 21:45 Sentence13: Yes that will work thank you. I also need help finding a certain hotel if you can? Sentence14: Unfortunately, that train does not travel Sunday, but train TR6364 leaves at the same time (22:11) and arrives by 22:58. Will this work for you? Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System