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: That'll be fine. What is the entrance fee, address, and postcode for that? Sentence2: Thank you for your help, have a great day. Sentence3: Alright, I'll look at the train that arrives at 10:23, and leaves at 7:40. It costs 75.10 pounds, and it has a duration of 163 minutes. Will that be all today? Sentence4: I found 404 trains leaving on monday. Where are you departing from? Sentence5: I am also looking for a place to go in town. Preferably a college. Sentence6: How about Christ's college in the Centre at Saint Andrew's street? Admission is free. Sentence7: Have a good day! Bye! Sentence8: There are 6 trains available, would you like to book one that leaves at 7:40? Sentence9: I'm looking for a train to anywhere on Monday Sentence10: Sure, the postcode is cb23bu, the address is Saint Andrew's Street and there is no entrance fee. Sentence11: As long as I arrive by 11:30 that is fine, I will also need the travel time and price please. Sentence12: You are very welcome! Have a good day now! Sentence13: Thank you, goodbye. Sentence14: I am need to be in Cambridge by 11:30 departing from Birmingham New Street Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User