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: Yes, could you tell me the travel time for the TR1656? Sentence2: Sure how many tickets please? Sentence3: thanks. i think thats take care of everything for me. thanks. bye. Sentence4: What train go there from Cambridge? Sentence5: What day and time are you looking at? I can help you find a train if I know that. Sentence6: I actually don't want to book tickets today. I just need the train ID and the times it runs. Sentence7: I'd like to find an attraction to visit on the west side of town. Sentence8: Can you give me the postcode to the museum and I will be traveling on tuesday. Sentence9: There are no cinemas on the west side, but I have several museums. The Lynne Strover Gallery is a great place, and it's free to get in. Sentence10: The postcode is cb30aq. What time are you looking at? Sentence11: Great, glad I could be of some assistance to you. Enjoy your trip, good day! Sentence12: I'd like to depart cambridge to arrive by 12:15 to stansted airport on tuesday. Sentence13: Yes, I am looking for cinemas and museums. Sentence14: There are 7 trains available, the earliest one is TR1656, which leaves at 5:40, and arrives at Stansted Airport by 6:08. Can I help you with anything else? Sentence15: Absolutely, it is 28 minutes. Sentence16: There are 13 options, any specific preferences? Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User