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: Thanks so much. Have a great day. Goodbye Sentence2: Yes that is perfect can you book that? Sentence3: I've booked a room for 8 people beginning on Friday and lasting three nights. Your reference number is EZF4SMWV . Can I help you find anything else in Cambridge? Sentence4: Personally, I enjoy the Funky Fun House, it is located in the east area at 8 Mercers Row, Mercers Row Industrial Estate. Will you be needing any further information? Sentence5: I'm sorry, there's no entertainment in the centre. Sentence6: Could I have the address and phone number of the Funky Fun House and is this a nightclub? Sentence7: I am coming in on Friday. I want to stay for 3 nights with 8 people. Sentence8: Definitely. What day are you coming in? Sentence9: Funky's address is 8 mercers row, mercers row industrial estate and the phone number is 01223304705. It isn't a nightclub. Sentence10: That sounds great, but come to think of it I should try something close to our hotel in the centre. Anything there? Sentence11: Can you find me some information on alexander bed and breakfast? Sentence12: Alexander is a cheap guesthouse in the centre with four stars and free internet and parking. Does this suit your needs? Sentence13: I am coming to cambridge and would like some type of entertainment while visiting. Sentence14: Goodbye. Enjoy your stay in Cambridge. Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System