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: Great! Thank you so much for all your help. Sentence2: How about one night? Sentence3: Let's try the Hobson's House please. Sentence4: TR6688 leaves Cambridge at 8:36 for Norwich. Would you like to book this train now? Sentence5: Great. I'm also looking for a 3 star hotel with free parking. Sentence6: Yeah, could you book me a 3 night stay at Hobson's House? Sentence7: I'm looking for something moderately priced please. Sentence8: Ok. Do you need me to book that for you? Sentence9: There are three choices in that price range: Bridge Guest House in the south, Hamilton Lodge in the north, and Hobson's House in the west. Sentence10: We have five hotels matching those requirements. Do you have a preference for area or price range? Sentence11: That hotel isn't available for 3 nights? Are you able to shorten your stay? Sentence12: I'd like to go to Norwich on Monday. Sentence13: Ok. There are lots of options. Where would you like to go? Sentence14: When would you like to book your stay? Sentence15: Friday. For 7 people. Sentence16: It is our pleasure. Have a great day! Sentence17: I'm sorry TR6688 departs Cambridge at 18:36 and arrives in Norwich by 19:55. Sentence18: I need a train departing from cambridge after 17:45. Sentence19: Nah, thanks though. But if ya can tell me when it gets there that'd be good. Sentence20: The hotel has been booked for you for Friday night for a total of 1 night for 7 people. The reference number is RJEXYUD1 . Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User