Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: I was able to make the booking. Reference number is : MNL7UFXJ . Sentence2: Absolutely we have 79 attractions, do you have a type? Sentence3: I have booked your taxi. Be expecting a yellow BMW. Please call 07643657212 should you need to reach them. Sentence4: Yes, that would be fine. Something in the west would be great. Sentence5: What about in the center? Sentence6: The postcode is cb11ps and the attraction type is cinema. Sentence7: Yes, please. I need to book it for 2 people and 4 nights starting from Friday. Sentence8: Thank You!, I will need to book a taxi that can depart by 12:30, please provide me with contact and the type of car. Sentence9: Have a great time. Sentence10: Hi there. I am excited about seeing some local tourist attractions. Can you help me find a place to stay while I am there? Sentence11: You're welcome. Sentence12: thanks alot for yor help. that is all for today Sentence13: Yes I found one guesthouse called el shaddai. Would you like to book a room? Sentence14: I'm sorry there are not any matches for what you are looking for. How about a guesthouse instead of a hotel? Sentence15: I will, thanks! You have a great day to. Bye. Sentence16: That will be fine. I'll need the postcode and attraction type? Sentence17: I'm sorry, but there is nothing with 0 stars in the west. Sentence18: Seventy-nine, wow this is going to be so much fun! Anyway I need a 0 star hotel with free parking. Sentence19: Thank you. I am also looking for a place to go in town. I would prefer something near the hotel. Sentence20: I highly suggest the Vue Cinema. Would you like more information? Question: Who has spoken the sentence 3? (A) User (B) System
Output:
Answer: (B) System