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: Just the postal code please? Sentence2: The postal code for that hotel is cb236bw. Sentence3: I need a place to stay in the west Sentence4: I'm leaving from Norwich. I'll need to arrive at Cambridge on Monday by 08:15. Sentence5: I'll be happy to help. Can you tell me if there is an area of town you prefer? Sentence6: Where are you traveling to and from and on what day and at what time? Sentence7: In the west. A cheap hotel with free parking. Sentence8: The cambridge belfry is a cheap hotel with free wifi and parking. The phone is 01954714600. Can I help with a booking? Sentence9: Thank you, thats all I need today Sentence10: Please feel free to reach out to us if you have additional requests. Have a great day. Goodbye. Sentence11: Great, thank you. Sentence12: Booking was successful, the total fee is 140.8 GBP payable at the station . Reference number is : DK26RL4O . Can I help you with anything else? Sentence13: have a good day. Sentence14: you are most welcome Sentence15: Thanks! I also need help finding a train. Sentence16: We are happy to help you with some information for our city. What specifically can I assist you with today? Sentence17: I am planning a trip in Cambridge Sentence18: grab me 8 tickets please and I need the conf # too Sentence19: I will work on getting that booked and be back with you shortly. Sentence20: I found the TR9020 leaving at 05:16. How many tickets would you like to book? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User