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 a place to go in the east, entertainment type. Sentence2: I need to know the name of destination please. Sentence3: Thank you. Goodbye. Sentence4: Thanks for using our service. Enjoy your visit. Sentence5: I'm a sophisticated man. I will only consider expensive guesthouses. Sentence6: Your booking was successful. The reference number is AZSYT6ET . Can I help with anything else? Sentence7: The gonville hotel is really nice. Want a reservation? Sentence8: Yes I can I just need the travel time, departure time, and arrival time. Sentence9: The postcode is cb18dw. They are on Cherry Hinton Road. Their phone number is 01223446104. May I help you with anything else? Sentence10: The A and B guest house is a cool place to stay in the east. We also have many other options. Do you have a price range? Sentence11: We have 5 great choices. Do you have a preference with a specific location? Sentence12: I'm looking for a place to stay, do you have any suggestions? Sentence13: Yes, can you help me book a taxi? Sentence14: No thank you that will be all. Sentence15: Sounds great. I'd love to know the postcode, phone number, and address for that attraction if you wouldn't mind. Sentence16: monday and for 5 nights for 4 people. Sentence17: I would like to make sure it has free wifi. Sentence18: Can you tell me what day you want to start your stay? And how many people for how many nights? Sentence19: You just reserved the Gonville hotel for me. That's where I'd like to go. Sentence20: Yes, I want to depart Cherry Hinton Hall and Grounds by 16:00. I will be going to the hotel. Sentence21: We need a place to go in town. Can you help? Sentence22: Of course, sorry about that. Look for a Blue Ford. Contact number: 07146797795. Can I assist you with anything else today? Sentence23: Sure I can. Do you have a preference for what part of town, or what type of place you want to visit? Sentence24: Yes can you please? Sentence25: How does the Cherry Hinton Hall and Grounds sound? Would you like more information about this attraction? Sentence26: thank you for using this service good bye Question: Who has spoken the sentence 24? (A) User (B) System
Output: 


Answer: (A) User