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 would like you to help me find a train departure. The train should leave on thursday and arrive at cambridge. Sentence2: From Bishops Stortford after 15:00 Sentence3: Train# TR7759 departing from Cambridge at 15:29 arrives in Bishops Stortford at 16:07. Can I help you with anything else? Sentence4: Ok thank you for your help. Sentence5: Ok! I suggest the Archway House. Would you like a room book? Sentence6: Sure, thanks, for 6 people, for 2 nights, starting Thursday, please! Sentence7: I have 5 trains. They depart 15:29, 17:29, 19:29, 21:29, 23:29. They are all 38 mins travel duration. Sentence8: No, I just need the train ID and arrival time Sentence9: Can I look up anything else? Sentence10: I'm sorry, there are no trains that day. Would you like to try another day? Sentence11: Thank you for using the Cambridge TownInfo centre. Have a great day! Sentence12: Alright, would you like me to make a booking for you? Sentence13: We have you set at Archway house. Reference number is P1FFCU2Z Sentence14: area and price are of no concern to me as long as the guesthouse has free parking and free wifi Sentence15: I think you should try again. Cambridge to Bishop Stafford on Thursday. Sentence16: I'm also looking for a place to stay. The hotel should include free parking and should include free wifi. Sentence17: There are about 8 choices. Did you want a certain area or price range? Sentence18: Where will you be leaving from? Sentence19: No that is it. Thank you. Sentence20: PLease give me the info for a train meeting the above listed criteria. Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User