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: We appreciate your business. Thank you for using our services, take care! Sentence2: Hello, I need a train that will be departing from Birmingham New Street on monday. Sentence3: I don't have a preference. Could you just give me the phone number of the first museum on the list please? Sentence4: Can you also help me find a place to visit while I am in town. Maybe a museum? Sentence5: TR1328 leaves Birmingham New Street at 13:40 and arrives in Cambridge at 16:23. Would you like to purchase a ticket? Sentence6: That's all I need, Thank you. Sentence7: Yes, I'll need 8 ticket on that train, please. And may I have the reference number? Sentence8: I would like to leave for Cambridge after 13:00. Sentence9: Your booking was successful. The total fee is 600.79 GBP, payable at the station, and your reference number is 35RQLG92 . Sentence10: The first museum is the Broughton House Gallery. Their phone number is 01223314960. Is there anything else I can help you with? Sentence11: There are 23 museums. Which area would you like? Sentence12: Many trains leave from Birmingham New Street on Monday. What time of day would you like to travel? Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User