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: Yes I need to leave broxbourne after 13:15. Sentence2: yes book please for 1 Sentence3: Unfortunately, the only multiple sports attraction is in the east. Can I look up some other attraction for you? Sentence4: Thank you. Can you also recommend places to go in the centre of town that involves multiple sports? Sentence5: The postcode is cb21sj. Sentence6: TR8199 will leave at 13:32 and arrive by 14:42. Do you require more information or would you like to book? Sentence7: Booking was successful, the total fee is 17.89 GBP payable at the station .Reference number is : JWI85JQG .is there anything else i can be of help? Sentence8: I have a lot of trains. Do you have a time of day ? Sentence9: I hope you have a wonderful day as well. Goodbye! Sentence10: Do you have any trains heading to Cambridge on Tuesday? Sentence11: No thanks you were great! Have a good day. Sentence12: How about a museum in the centre of town? Sentence13: I'd recommend primavera on 10 king s parade. Would you like more information on it? Sentence14: Sure thing! Can I help you with anything else? Sentence15: Thanks for your help! Sentence16: I need the postcode. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User