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: You have five options for a train that will get you to Cambridge by 14:30. Do you have a preference on what time to leave? Sentence2: I'd like to get there by 14:30. Sentence3: May I have their phone number? Sentence4: Saint barnabas press gallery is a very nice museum in the east. What information can I provide? Sentence5: Ok, I am getting the information up now, do you have a time in mind? Sentence6: I am planning a trip in Cambridge Sentence7: No, any available train would be fine. I will need four tickets, please. Sentence8: No, I'm looking info on saint barnabas press gallery. Sentence9: That sounds great. Did you need a hotel, train or restaurant while in the area? Sentence10: Of course! Their phone number is 01223902116. Is there anything else I can help you with? Sentence11: Can you book it for me and get a reference number ? Sentence12: I also need information on a train from bishops stortford to Cambridge on Thursday. Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User