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: No, that's okay. Are there any Museums in the East instead? Sentence2: I can recommend four different museums in the east area. How about Cambridge artworks? It is popular. Sentence3: You're welcome, have a great day! Sentence4: Nope, that's everything. Thank you! Sentence5: Well, unfortunately there are architectural attractions located in the east. Would you like to try a different area? Sentence6: Can you give me their phone number and postcode, please? Sentence7: The cambridge artworks is a free museum. Can I help you with anything else today? Sentence8: Excellent. I'm also looking for a train as well. Sentence9: Yes, I am looking to depart from London Kings Cross that should arrive in Cambridge by 15:00 and I need it for 3 people and will need the reference number. Sentence10: On Monday please. Sentence11: I was able to book you on TR3194 which leaves london kings cross at 13:17 and arrives Cambridge at 14:08. Reference R6KWX99C . Can I help with anything else? Sentence12: I need to narrow the search down. What day will you be traveling? Sentence13: That sounds interesting. What is the entrance fee for this museum? Sentence14: Certainly. Do you have a destination in mind? Sentence15: I am looking for architectural spots to visit on my trip to Cambridge. On the east side. Sentence16: Absolutely. Their phone number is 01223902168 and they are in postcode cb13ef. Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System