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: I'm looking for multiple sports in the centre please. Sentence2: You're welcome. Have a nice day. Sentence3: I got 8 tickets for you the reference number is TJTTPUV3 . 132 GBP is the total and can be paid at the station when you get there. Anything else? Sentence4: I need the train for 8 people leaving from Peterborough and arriving in Cambridge before 13:00. Once you have the booking, can you send me the reference number? Sentence5: I am looking for somwhere to go in the centre. Sentence6: Absolutely! The phone number for Primavera is 01223357708. Can I help you with anything else? Sentence7: Do you have any type of museums in the centre? If you do, I need the phone number, too. Sentence8: Yes, for 8 people. I will need a reference number, thanks! Sentence9: On what day did you need the train? Sentence10: Are you looking for an attraction or a restaurant? Sentence11: I think that will be all for today. Thank you. Sentence12: There is a train that leaves at 05:19. The ID is TR1662. Would you like me to book at ticket for you? Sentence13: I need to book a train to arrive in Cambridge by 13:00. Sentence14: I have about 11 different museums. Might I suggest the Primavera. It has a large variety of excellent exhibits. They also offer free admission. Sentence15: Unfortunately, I don't have any listings for centre. How about in the east area? Sentence16: Sounds great! Could I get the phone number? Sentence17: OK, where from? And what day are you traveling? Sentence18: I would need the train on Friday. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System