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'm looking for a Lebanese restaurant that is expensive in price. Sentence2: Thanks, I also need a train from cambridge to peterborough afterwards Sentence3: Yes I was able to make that reservation at 15:45 your reference number XH49SBME . Sentence4: There are 16 trains leaving on Thursday after your dinner. I would think 2 hours should be long enough? So there is one at 18:06 I can recommend. Sentence5: I have the Ali Baba restaurant in the centre of town. They are moderately priced. Can I help you in reserving a table? Sentence6: I'd like my train to arrive by 16:45, please. Sentence7: Is there an opening available at 15:45? I'll also need the reservation number if it's available. Sentence8: The booking was unsuccessful, would you like to try another time? Sentence9: You are welcome. Thank you for contacting the Cambridge TownInfo centre. Good bye. Sentence10: I am very sorry there are no results for an expensive lebanese restaurant. Would you like to try for a different type of cuisine? Sentence11: Really? The Ali Baba is Lebanese? Sentence12: Yes I would like to book a table for 7 people at 16:45 on thursday. Sentence13: Yes, that sounds like it will work for me. Thank you for the information. That should be all I need today. Sentence14: No I'd really like lebanese, is there one in the centre area? Sentence15: Yes. The ali baba is lebanese. Would you like to book a table? Sentence16: I have train TR4814 that will be departing at 15:34 and will get you there by 16:24. Would that be something that interests you? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System