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: TR1163, your booking was successful, the total fee is 68.6 GBP payable at the station. Reference number is : GFGRNXJT . Will there be anything else today? Sentence2: there are 19 trains available. What time of day would you like to travel? Sentence3: I would like to arrive by 11:00 if possible please. Sentence4: TR1854 Arrives at 10:58. TR1163 arrives at 09:58. Sentence5: I also need a place to stay that has free wifi and parking. Sentence6: The Reference number is : 0Q276EHV . Sentence7: any will be fine with me. Sentence8: I wanted to travel to kings lynn. Do you have a train leaving on monday? Sentence9: To help narrow it down, do you have an area or price range you prefer? Sentence10: It should be in the moderate price range. Does that help? Sentence11: That sounds great! Can you please book it for me starting on Thursday? I will need the reference number please. Sentence12: Sure! Just to clarify, would you prefer the TR1854 train or the TR1163 train? Sentence13: In that case I recommend the acorn guest house. They have 4 stars and are in the north side of town with parking and internet for you Sentence14: That would work can I get 7 tickets please? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System