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: Alright I found two options for you an expensive one and a cheap one. Which would you prefer to book? Sentence2: There are a lot of trains going to cambridge, where are you leaving from and what day? What time do you want to leave? Sentence3: Reference number is J9Z5CBKI . Is there anything else? Sentence4: I would like to book the 5:29 for 7 passengers if that is available. Sentence5: I would like to stay on the west side and also need free parking. Sentence6: Yes, please. 7 people for 3 nights on Monday. Sentence7: I would recommend the Hungtingdon Marriott Hotel. It's expensive and in the west. It's 4 star rated and offers free wifi and parking. Do you need a room? Sentence8: Booking was successful, the total fee is 70.7 GBP payable at the station. Reference number is : IUNU69VQ . Can I help you with anything else today? Sentence9: Thanks. i also need a hotel to stay and should include free wifi Sentence10: That is all, thanks for your assistance. Sentence11: I don't have a preference. What do you recommend? Sentence12: I will be departing from Bishops Stortford on Monday and need a train that will leave that Monday from Bishops Stortford to arrive Cambridge by 10:30. Sentence13: I need a train going to cambridge. Sentence14: Okay, what area would you like to stay in? Sentence15: You are more than welcome. Goodbye. Sentence16: There are three trains that would work. The earliest leaves at 5:29, the latest leaves at 9:29, arriving at 10:07. Which should I book for you? Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System