Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: Adress, between victoria road and the river. The entrance fee is unknown. Is there anything else? Sentence2: You are welcome! Enjoy your visit. Sentence3: Your table at Saigon City is booked for Friday at 14:45. The reference number is 2LC9ER6D . Is there anything else I can help you with today? Sentence4: Jesus green outdoor pool is in that area. Sentence5: Thanks. That was all I needed. Goodbye. Sentence6: Yes please book a table for 1 person at 14:45 on friday. Sentence7: I would like asian oriental food in the expensive range. Sentence8: I would like a restaurant in the same area. Sentence9: Hi, can you help me with some information on places to go in town? Sentence10: I'm looking for a swimming pool in the North. Sentence11: I found Saigon City matching. Would you like to book a table there? Sentence12: Yes. I will also need a taxi to take me from Jesus Green Outdoor pool to Saigon City arriving in time for the reservation. Sentence13: Sure, what type of attraction are you looking for? Sentence14: Okay, what type of food would you like to eat and what is your price range? Sentence15: What's the address and entrance fee for that pool? Sentence16: Booking completed! Booked car type : yellow volkswagen Contact number : 07774063266 Question: Who has spoken the sentence 5? (A) User (B) System
A:
Answer: (B) System