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 are welcome. Can I help you with anything else today? Sentence2: Hotel du vin and bistro serves european food in the moderate price range. It is located at 15 - 19 Trumpington Street. Would you like to reserve a table? Sentence3: Thank you for using are service and let us know if you have any future needs. Sentence4: I just want the reservation number for Friday please. Sentence5: I'd also like to line up a place to eat, if you could help me with that. Sentence6: No thank you. That will be all. Sentence7: Not really. Can you book one of them for Friday for me? Sentence8: We have 19 that match your search now. Do you have any other preferences? Sentence9: Thank you. How far away is the Restaurant from the hotel? Sentence10: Sure, for how many nights will you be staying? Sentence11: Sure thing! What type of cuisine are you looking for, what area of town, and/or what type of price range? Sentence12: I'd like a moderately priced European restaurant in the centre, please. Sentence13: I have booked a table for 3 at 11:30. Your reference number is OUR3L525 . Can I help with anything else? Sentence14: Yes, please. I need a table on Friday at 12:30 for 3 people, please. Sentence15: I'm happy to book that for you. I just need to know how many nights you'll be staying. Also, how many people? Sentence16: The hotel's address is 78-80 milton road. Sentence17: Sure, your room is booked, and your reference number is USB3QCDT . Is there anything else I can do for you? Sentence18: There are 21 hotels that meet your needs. Would you like to narrow your search by area and/or price range? Sentence19: I need a place to stay in Cambridge that is rated 4 stars and has free wifi. Sentence20: You are set. I have made you a reservation at the Limehouse for Friday night. Sentence21: I also need free parking. Do they have that? Sentence22: How about Friday at 11:30? Please include the reference number for the booking. Sentence23: 4 nights. 3 people. Please include reference number in your response. Sentence24: The booking was unsuccessful, would another day or time work? Sentence25: Thank you for all your help today. Sentence26: Thank you. Can I have the reference number for that reservation please? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System