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: You're very welcome! Have a great day! Sentence2: It will be for 16:45 on tuesday. Sentence3: I need to go between the hotel and the restaurant. Arriving by the booked time, please. Sentence4: Booking completed! Booked car type : grey skoda Contact number : 07990098942 Sentence5: I need that in the north please. Sentence6: Yes could you please make those reservations? Sentence7: does it have free parking ? Sentence8: I'm hoping you can help me find a guesthouse. Parking is optional. Sentence9: In that case I would recommend the Bridge Guest House, it has a 3 star rating and offers both free WiFi and free parking. Would you like to book it? Sentence10: Also I need to find an expensive chinese restaurant book the table for 3 at 16:45 on tuesday Sentence11: Okay, I can help with that. What is your departure site and destination? Also, when would you like to leave or arrive by? Sentence12: Is there a particular part of town you would like to go to? Sentence13: Thank you, it has been a pleasure assisting you today. Enjoy your trip. Goodbye Sentence14: There are 3 people in the group. Sentence15: Any type that you have available. Sentence16: Can I have the price range and phone number? Sentence17: I need a hotel that has free parking Sentence18: which type hotel do you want? Sentence19: It has a 4 star rating and does provide internet. Would you like a reservation? Sentence20: Yes, please. I need a taxi. Sentence21: I have 2 chinese restaurants in the north, the hakka and the hotpot, both expensive. Phone number is 0122568988 and 01223366552 respectively. Would you like me to book reservations for you? Sentence22: Your booking for Hakka was completed successfully, reference number PM03Z53S . Can I help you with anything else? Sentence23: a and b guest house is a nice one. Do you want to book ? Sentence24: How many people are in your party? Sentence25: What day and time would you like the booking for? Sentence26: Thank you, same to you. Sentence27: Does it have a 3 star rating? I'm also needing free wifi on this trip. Thanks for helping me. Sentence28: Parking is not included but internet is, do you want to book or search for something else? Sentence29: The price range is moderate and the phone number is 01223247942. Sentence30: Thank you so much. That is all I need today. Question: Who has spoken the sentence 28? (A) User (B) System
Output: 


Answer: (A) User