You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Ex Input:
Sentence1: Is there anything else I can help you with Sentence2: Okay! What is your departure site? Sentence3: Okay, I've got you a black bmw with the contact number 07083984796. Sentence4: Thank you so much! Sentence5: I need to book a taxi to come pick me up by 10:30 to take me to Midsummer House Restaurant. Sentence6: I'm coming from city stop restaurant. Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Could you tell me more about it? What is its price range? Where is it located in the south? Sentence2: I'm sorry that date and time slot is already full. Would you like to try a different date/time? Sentence3: It is expensive and the address is 15-17 norman way, coldhams business park Sentence4: what about 4:30 on tuesday? Sentence5: There is one Mexican restaurant in the south. The Chiquito Restaurant Bar. Would you like me to book it for you? Sentence6: Thank you, that is all I need today. Sentence7: I am trying to find a restaurant in the south of the city that serves modern American food. Sentence8: I was able to book a table for 1 at 16:30. Your reference number is P62404I5 . Sentence9: I didn't find any modern American restaurants in the south end. Are you open to other areas? Sentence10: Sounds delicious, could you book a table for 1 at 17:30 on Tuesday? Sentence11: You are welcome. Goodbye. Sentence12: What about a restaurant there that serves mexican food? Sentence13: It is in the expensive price range and is located at 2G Cambridge Leisure Park Cherry Hinton Road Cherry Hinton cb17dy Sentence14: Great! Can you also tell me the address and price range for the Express by Holiday Inn Cambridge? Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: how about something in the moderate price range? Sentence2: Well I'm really looking for that expensive guesthouse type. How about something in the north with free parking included? Sentence3: Sure, please make a reservation for 2 people 2 nights starting on thursday. Sentence4: Can we make it 1 night then? Sentence5: Thank you for using our service. Sentence6: There are no results for expensive guesthouse in the north. Would you like to try something else? Sentence7: Thank you for assisting me with that. I won't need anything else today. Sentence8: Sorry, the hotel can't accommodate you for that time frame. want to change dates? Sentence9: How about acorn house? I hear it's lovely. Sentence10: I'm sorry there are no results for an expensive guesthouse, would you like to try another type, such as hotel? Sentence11: I am looking for a place to stay. The hotel should be in the expensive price range and should be in the type of guesthouse Sentence12: Booking was successful for one night. Reference number is : FJFV11JA . Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:

Answer: (B) System