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 do not have an arrival time. Sentence2: It should leave from Cambridge and go to Leicester please. Sentence3: Certainly! What are your departure and destination locations? Sentence4: Your booking was successful, the total fee is 226.8 GBP payable at the station. Your reference number is: 17I15NSK . Is there anything else I can help you with today? Sentence5: Hi, I am looking for a train that leaves on Tuesday after 18:15. Sentence6: Thanks for that information. Is there a time you would like to arrive by? Sentence7: carolina bed and breakfast has free wifi and parking if you want to book there. Sentence8: Yes I also need a guesthouse to stay in. It should have 4 stars, free wifi, in the east location. Sentence9: We have 6 different guesthouses that fit your criteria. Do you have a specific price range in mind? Sentence10: No it doesn't matter. Sentence11: The TR0776 leaves Cambridge at 18:21 and gets into Leicester at 20:06. Do you want me to book it for you? Sentence12: Yes. I would like to book it for 6 people please. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System