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
Example: customer: Hi. 
 agent: Hello. How can I help you? 
 customer: I would like to change my existing reservation as my plan to go for a holiday trip got postponed. Can you please help me with this? 
 agent: Sure, may I know your name please? 
 customer: My name is Anthony Phillips. 
 agent: Please wait a moment. 
 customer: Sure. 
 agent: Unfortunately there is no reservation found with your given name. 
 customer: Not a problem, thank you for checking. 
 agent: Thank you for choosing us.
Example solution: no_reservation
Example explanation: Here the customer has not asked for any booking, he just wanted to update his already booked flight, so the status would be no_reservation

Problem: customer: Hello. 
 agent: Hello. May I know your name? 
 customer: Sure, I am Sandra Allen. 
 agent: How can I assist you today? 
 customer: Today, can you help me in booking a ticket to Atlanta? 
 agent: Sure, we are delighted to help you. When you are willing to travel to Atlanta? 
 customer: I am planning to meet my children and wife in Atlanta, as we planned to visit Georgia Aquarium on 03/21. 
 agent: Ok. May I know your recur date? 
 customer: We planned the trip for couple of dates, so I would like to go on 03/20 and I intend to return back on 03/22. 
 agent: Kindly share your airport codes? Do you want any lay bay in your journey? 
 customer: Sure, I will depart from New York, LGA and landing at Atlanta ATL. 
 agent: Ok. 
 customer: Yes, I am comfortable to travel if there is one stopover in between my journey. 
 agent: Please be online, I will check the availability and revert to you. 
 customer: Sure. 
 agent: Thanks for waiting,. 
 customer: Ok. 
 agent: Hawaiian airlines are providing service on your route with 1 connection. Can I proceed? 
 customer: Ok, please proceed for booking. 
 agent: Your booking is done with flight 1027. 
 customer: Thank you. 
 agent: Thank you for reaching us. 
 customer: Welcome.
Solution: book