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: Which one has thai food? Sentence2: I can certainly help you find a train leaving from Kings Lynn. What day would you like to go? Sentence3: Departure time isn't important as long as I can get to Cambridge by 09:15. Sentence4: Thanks, I also need an expensive thai restaurant. Sentence5: No problem. The number is 01223323178 and they are located at 35 Newnham Road Newnham. Is there anything else you need help with today? Sentence6: No, not today. Can you just give me the train ID and travel time? I guess I will need that departure time too. Thanks. Sentence7: Both choices serve Thai. I prefer sala thong. Sentence8: Hello, I'd like some information on a train departing from kings lynn. Sentence9: Sure. The post code is cb39ey. Is there anything else I can find for you today? Sentence10: I have 2 options for you. Sala Thong is located in the west. And Bangkok City is located in the centre. Which would you prefer? Sentence11: I hope when you come the weather will be clement. Sentence12: 09:15 please, thank you for your help. Sentence13: I have a deaprting at 5:11. Shall I book you one? Sentence14: I want to leave on Sunday. Sentence15: What time do you need to be in Cambridge? I have 19 trains available. Can you help me sort this out better for you? Sentence16: Could you give me the phone number and address of sala thong? Sentence17: No that will be all, thanks. Sentence18: Do yo have a preferred time to leave? Sentence19: Can I also get the postcode please? Sentence20: Train TR6003 departs Kings Lynn at 05:11. The travel time is 47 minutes. It will get you to Cambridge at 05:58. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System