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: Hi, I need a train the is heading towards birmingham new street. Sentence2: Train TR9209 leaves at 21:01 is this okay? Sentence3: Thanks can you also give me the entrance fee and phone for a fun boating attraction? I don't care what area it's in. Sentence4: Actually I need one that leaves after 21:00 on Thursday, sorry. Sentence5: Did you have a certain time that you would like to leave after or arrive by? Sentence6: Yes. Can I have the arrival time and price, please? Sentence7: Not, I don't. There are four boating attractions and I have no information on their entrance fees. You already have the phone number for Camboats. Perhaps you could call them? Sentence8: Thank you, have a good day Sentence9: Train TR9678 from Cambridge to Birmingham New Street departs Friday at 05:01 and arrives 07:44. Is this acceptable or do you need a different time? Sentence10: yes its ok with me Sentence11: No, just as long as it leaves after 21:00 on thursday. Sentence12: I don't have entrance fee information, but you could try Camboats. Their phone number is 01223902112. Can I help you with anything else? Sentence13: It will arrive at 23:44 and the cost is 75.10 pounds. Sentence14: Do you have any boating attractions that do list their entrance fees? I want to make sure I have enough cash with me when I arrive. Sentence15: ok that's all i need thanks Sentence16: it will cost 75.10 pounds. can i book? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System