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: How about a swimming pool in the same area? Sentence2: I need a place in the east, please. Sentence3: That would be express by holiday inn cambridge. Would you like to book that? Sentence4: No, actually I do need to book the Holiday Inn Cambridge as long as it has free wifi. Sentence5: Um, no thank you. I think that's all I need for today! Sentence6: Thanks, do you know of any colleges near the hotel? Sentence7: Unfortunately I'm not finding any colleges near the hotel on the east side of town. Would you like me to expand my search to another area? Sentence8: The holiday inn cambridge has internet but I do not have any information on whether or not it is wifi or free. Sentence9: Great. Thank you very much for contacting Cambridge Towninfo Centre. Have a great day. Sentence10: Can we go ahead and book that for 5 people for 3 nights starting on Saturday? Sentence11: Can I get the entrance fee and phone number for the Abbey Pool please? Sentence12: We have 5 hotels that meet your request. Is there a specific area you'd like to stay in? Sentence13: Their phone number is 01223902088, and their entrance fee is not listed in our system at this time. Sentence14: Okay, I have you booked for three nights starting on Saturday. Your reference number is PDMS5WA1 . Sentence15: Thank you for using our service. Have we met all of your needs? Sentence16: I'm looking for a hotel in the expensive price range. Internet is not necessary. Sentence17: Yes! The Abbey Pool and Astroturf Pitch is on the east side of town, at pool way, whitehill road, off newmarket road. Can I help with anything else? Sentence18: Ok. That's all I need then. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System