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: I hope you enjoy your stay in Cambridge! Sentence2: That sounds great, can you tell me their postcode? Sentence3: I would also like to find out about any mutliple sports attractions you might have in the centre of town. Sentence4: I will be departing from birmingham new street. I don't really care about what time it leaves but I have to get there by 21:30. Sentence5: Train TR6105 will arrive in Cambridge by 12:23. It costs 75.10 pounds per ticket. Would you like me to book a seat for you? Sentence6: I do not have the entrance fee listed, but if you are interested in going there, you could call them at 01223576412 to determine their pricing. Sentence7: There postal code is cb23bu. Can I help you find anything else? Sentence8: Do you have a college attraction in the centre of town? Sentence9: Hi there. I would like to find a train to Cambridge for Thursday. Sentence10: No, that should be all, thank you. Sentence11: Sure. I found many listings. Where would you be departing from? What time do you wish to leave and arrive by? Sentence12: What is the price for that? Sentence13: I'm afraid we don't have anything like that. If you're willing to go to the east side there is the Cherry Hinton Village Centre. Or maybe something else? Sentence14: There are 13 colleges in the centre of town. christ's college is in the centre of town and the entrance fee is free. Sentence15: Will you need anything else at the moment then? Sentence16: No thank you. I think that was all the information I needed. Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User