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
One example is below.
Q: 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.
A: no_reservation
Rationale: 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
Q: customer: Hello. I am Elizabeth Davis. 
 agent: Hello. How may I aid you today? 
 customer: I want to book a ticket as I have meeting purposes, can you please book me a ticket from JFK? 
 agent: Sure, we are here to serve you. 
 customer: Thank you. 
 agent: Please let me know your planned travelling dates to proceed further. 
 customer: Sure, my travel dates are on 03/06 and 03/08. 
 agent: Can I know your connection limit? 
 customer: I need a connecting limit. 
 agent: Kindly share your destination point. 
 customer: I would like to landing at IAD. 
 agent: Thank you for providing your details, please wait for a while. 
 customer: Ok, I will wait. 
 agent: We have found a connected flight with Southwest airlines, flight number 1001 and the fare of 100. 
 customer: Ok, please book this ticket. 
 agent: Your booking has been processed successfully. 
 customer: Thank you so much. 
 agent: Thanks for opting us.
A:
book