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: What time would you like to arrive at your destination? Sentence2: Could you just give me the postcode please? Sentence3: Can you tell me the departure and arrival time for that train? Sentence4: Yes, it leaves at 07:06 and arrives by 07:56. May I help with anything else? Sentence5: As long as it leaves after 20:30, then it's fine. Can you give me the train ID? I'll buy at the station. Sentence6: I would be leaving from Cambridge going o Peterborough. Sentence7: You're welcome. Have a great day! Sentence8: No thank you. That is all I needed. Good bye. Sentence9: I just need to leave after 20:30. Sentence10: the postcode is cb12tz. Is there anything else I can help with? Sentence11: Can you please tell me your departure and destination? What time would like to leave or arrive? Sentence12: The ID is TR6688. Sentence13: How about the last train, it'll get you there at 07:56. How many tickets please? Sentence14: I need help finding a train for Thursday. Sentence15: I also need a place to stay. I am looking for a 0 star hotel in the moderate price range Sentence16: That narrowed it down to 1 hotel that meets your criteria. It's called CityRoomz. They offer free internet. They are located at Sleeperz Hotel, Station Road. Would you like to book? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User