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: You're welcome - safe travels! Sentence2: That should be all that I need, thank you. Sentence3: I have booked your train for four 16.60 for each and 66.4 pounds total. Your reference number is TITYQMLD . Can I help you with anything else? Sentence4: There will be four people riding with me. Sentence5: Great, and how many people will be riding with you? Sentence6: How about the TR1764 that arrives at 15:27? Sentence7: The Fez Club is located at 8 Market Passage in the centre of town. Is there anything else I can help you with? Sentence8: Yes please let me know the area and address. Sentence9: Sure, I would love to purchase my ticket. Sentence10: Are there any trains that arrive after 21:00? Sentence11: Where will you be departing from and what time would you like to arrive? Sentence12: Yes. I'm looking for a train leaving on Monday going to London Liverpool Street. Sentence13: We have the TR0117 that arrives at 21:27. Does that work? Sentence14: I am looking for a place called The Fez Club in Cambridge. Sentence15: There is a nightclub that is name Fez Club in Cambridge. Do you need their address? Sentence16: From cambridge to london liverpool street. I don't need a specific time, I just need to know the arrival time. Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User