instruction:
In this task, you are given a conversation between a flight agent and the customer. You are given 4 options and you need to select the goal of the conversation. It is provided as part of customer's context, which has to be one of the following: `book`: Make a new reservation, `cancel`: Cancel an existing reservation, `no_flight`: No flight found for the customer's preference, `no_reservation`: No reservation / No change / No cancellation was made in the conversation, mostly enquiring details
question:
customer: Hello, I am Michelle Parker. 
 agent: Hello, how can I be your helping hand today? 
 customer: As, I am a science student, I want to visit Perot Museum of nature and science for my research work in Dallas & Fort Worth, TX - DFW. Can you avail me to book a flight with one way station? 
 agent: Sure, we are happy to help you for booking. 
 customer: Thank you. 
 agent: Let me know your preferred journey dates. 
 customer: I want to fly on 12/09 and I intend to recur on 12/11. 
 agent: Ok, May I know your budget? 
 customer: I have sufficient amount for this trip, I can afford 5000. 
 agent: Ok, Can you please share your boarding point? 
 customer: I want to board from Oakland, CA - OAK. 
 agent: Ok, please wait for a couple of minutes. 
 customer: Sure, make it fast. 
 agent: Sorry to inform you that, there were no flight running at that location due to abnormal weather conditions. 
 customer: Ok, I will choose another way to reach my destination. Anyways thank you for sharing the information. 
 agent: Thank you for approaching our service.
answer:
no_flight


question:
customer: Hi. 
 agent: Hello. How can I assist you? 
 customer: Due to bad weather conditions, I cannot attend my meeting. Can you help me to change my existing reservation? 
 agent: Sure, may I know your name? 
 customer: Sure, my name is Frank Perez. 
 agent: Please give me a moment to check your ticket status. 
 customer: Ok. 
 agent: Sorry Frank, no reservation is available by your name. 
 customer: That's ok, thank you. 
 agent: Thank you for contacting us.
answer:
no_reservation


question:
customer: Hello. 
 agent: Hello, what kind of service your looking for? 
 customer: Can you please help me with booking a flight ticket from DTW to SFO? 
 agent: Sure, please share me your travel dates. 
 customer: My travelling dates are from Sept 12-14. 
 agent: Do you need direct flight or connecting flight? 
 customer: I would be comfortable with single stop over. 
 agent: For booking, we need your good name. Please mention it. 
 customer: Justin Evans here. 
 agent: May I know your class preferences? 
 customer: I prefer business class. 
 agent: May I know your arrival and depart timings? 
 customer: I am comfortable with any time. 
 agent: We found a Frontier airline and 1001 is flight number with a fare of 700. Shall I proceed? 
 customer: You can proceed with booking. 
 agent: Your ticket is confirmed with a business class. 
 customer: Thank you for the help. 
 agent: Thank you for opting us.
answer:
book