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 for 5 nights? Sentence2: yes.book for six people and six nights. remember to also give me the reference number Sentence3: You're welcome. Have a pleasant stay. Goodbye. Sentence4: I am looking for a place to stay. The hotel should have a star of 0 and should be in the type of hotel Sentence5: Sorry, I was unable to complete the booking. Would you like to try booking for a shorter stay or for another day? Sentence6: it needs to start on wednesday, please. Sentence7: your booking was successful. is there anything else i can help you with? Sentence8: I found the cityroomz hotel in the centre part of town. Would you like to book a room? Sentence9: Actually I need the reservation to be for 4 nights, 6 people, starting from wednesday. Could you change the reservation for me please? Sentence10: I think that is everything, thanks! Sentence11: No problem, I was able to book that for you and your reference number is VA5JADCK . Is there anything else I can do for you? Sentence12: Cityroomz has free wifi and does not offer free parking. Do you want me to book it for you? Sentence13: What day would you like the reservation to start? Sentence14: The hotel should include free wifi and doesn't need to have free parking. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User