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 a guesthouse in the west that is 3 stars. Sentence2: Okay. Can you book the Hobsons House for 4 people and 5 nights starting on Saturday? Sentence3: I need a guesthouse, with parking that is free. Sentence4: What is the travel time of that train? Sentence5: I would recommend the acorn guest house. Would you like a reservation? Sentence6: I now have seven results. To help narrow it down more, what time would you like to depart? Sentence7: That is all for now. Thanks Sentence8: entrance fee, address, and phone number Sentence9: I need to arrive in cambridge by 19:15. Sentence10: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence11: The travel time is 38 minutes. Is there anything else I could help you with today? Sentence12: I have TR 3474 from bishops stortford to cambridge arriving at 18:07. Will that work? Sentence13: You got it! Booking was successful. Reference number is : INXJI4JD . Sentence14: Whatever gets me an arrival time closest to 19:15 Sentence15: Great, thanks, sorry for the confusion earlier! Can you help me find a train, too, please? I'm traveling from Bishops Stortford to Cambridge on the same day as my hotel reservation. Sentence16: Phone is 01223304906. Address is 96 barton road. There is no entrance fee. Sentence17: I have several trains that fit that description. What time would you like to travel? Sentence18: With that criteria, I only have one option. It would be the Hobsons House. It is moderately priced and offers free parking and wifi. Would you like to book? Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User