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 many tickets? Sentence2: It doesn't matter as long as it is a nice museum. Sentence3: I want a train leaving from leicester. Sentence4: Yes, that's fine.Thank you so much. That's all I needed today. Sentence5: okay, booking was successful. The total cost is 189 GBP. Reference number is : 44KVOVJM . What area do you need the museum to be in? Sentence6: I need 5 tickets and the reference number. I would like to go to a museum attraction in town. Please provide a area, phone number, and postcode. Thank you. Sentence7: Does it matter if it has a entrance fee? Sentence8: Yes can you book that one please? Sentence9: Anytime you prefer to leave? Sentence10: no. find me where it is located, phone number and postcode Sentence11: The TR4170 leaves at 09:09. Will that work for you? Sentence12: Happy to be of service, and enjoy your time in Cambridge! Sentence13: Okay how about broughton house gallery in the centre? Their phone is 01223314960. Postcode is cb11ln and address is 98 king street. Entrance is free. Sentence14: I'll be coming from Leicester to Cambridge on Friday. I'd like to arrive by 21:15. Sentence15: Sure! Where would you like to travel to? What day would you like to travel? Do you have any preferences on departure times? Sentence16: No. Just as I make my arrival time but not leave unnecessarily early. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User