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: Ok, great! How many guests will there be and how many days would you like to stay? Sentence2: Thanks, that's all I need today. Sorry for making you repeat yourself like that! Have a great day, goodbye! Sentence3: Do they offer free breakfast with their rooms . Sentence4: There are, yes. There's the Abbey Pool and Astroturf Pitch in the east, the Jesus Garden Outdoor Pool and Kings Hedges Learner Pool north, and Parkside Pools in the centre. Sentence5: Sure, we have many hotels in Cambridge. What area of town would you prefer? Sentence6: I don't need a reservation yet. I would like the phone number and postcode, though. Sentence7: There is a grey Honda booked for you to go from the pool to your hotel at 4:45. Their contact number is 07636297454 in case you need to reach them. Sentence8: I'm sorry, we don't have any hotels that meet that criteria. Might you be willing to accept a place with 4 stars and free parking? Sentence9: Are there any swimming pools in town? Sentence10: It is expensive. I can check on a cheap hotel if you'd prefer? Sentence11: Yes, what time do you need the taxi? Sentence12: No, I really want to stay at the Marriott. Sentence13: That's pool way, whitehill road, off newmarket road. Sentence14: The postcode is cb58nt. Sentence15: I'd like to leave the pool by 4:45. Sentence16: Yes, just one more thing. What's the address of the Abbey Pool? Sentence17: Thank you. Could you book me a taxi from the pool at 4:45 to go back to my hotel? Sentence18: Can you book a taxi for me? From the pool to the hotel? Sentence19: Hi, can you help me find a hotel, please? Sentence20: I'd like to get a little more information first. What is the price range at the Huntingdon Marriott Hotel? Sentence21: We have three hotels matching that search. Could I book a room for you at the huntingdon marriott hotel? Sentence22: Yes, I would like to book a four star hotel then. Sentence23: No problem at all, and you're quite welcome. Thanks for contacting the Cambridge TownInfo Centre and have a great day! Sentence24: I want the Abbey Pool. What's its postcode? Sentence25: The huntingdon marriott hotel's number is 01480446000, it's postcode is pe296fl. How else can I assist you? Sentence26: I have a booked a grey honda for you. The contact number is 07636297454. Can I assist you with anything else today? Sentence27: I'm sorry but I don't have access to that information. Sentence28: I don't care where, I just need it to be 5 stars and include free parking. Question: Who has spoken the sentence 24? (A) User (B) System
Output: 


Answer: (A) User