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

Input: Consider Input: customer: Hello, I am Pamela Rodriguez. 
 agent: Hello, what can I do for you today? 
 customer: I want to reach Detroit, MI-DTW to meet my old friend to start a new business, can you help me to book a flight ticket from Dallas, TX-DFW? 
 agent: Sure, do you need a connection in between your journey? 
 customer: 02/04 and 02/04 are my planned travelling dates. I prefer one connection. 
 agent: Ok, please wait a minute. 
 customer: Ok. 
 agent: We found a AA airline with flight number 1003 and price is 100 available according to your requirements. 
 customer: That's good you can book the ticket. 
 agent: Your reservation is done. 
 customer: Thanks for your assistance. 
 agent: Thank you for picking us.

Output: book


Input: Consider Input: customer: Hello, I am Jack Perez. 
 agent: Hello. How can I help you? 
 customer: I would like to visit Statue of Liberty in New York, so could you please book a ticket for me? 
 agent: Sure. I will help you to book a flight, can you please provide me your travelling dates? 
 customer: Sure, I would like to go on 11/09 and return back on 11/11. 
 agent: Ok, please share me your travelling airport codes. 
 customer: My source and destination airport codes are ORD and LGA. 
 agent: Give me a moment. 
 customer: Ok, ensure it is a single connecting flight. 
 agent: Sorry, there is no flight is found on your route with single connection. 
 customer: That's ok, thank you for checking. 
 agent: Welcome. Thank you for choosing us.

Output: no_flight


Input: Consider Input: customer: Hi. 
 agent: Hello. 
 customer: I am Angela Lewis. 
 agent: How may I help you? 
 customer: I want to go to San Francisco next week for my film shooting purpose, can you please book a flight ticket for me? 
 agent: Lewis, I am here to help you. Could you please share me your source airport code and destination airport code? 
 customer: I planed to start from JFK to SFO. 
 agent: When would you like to travel? 
 customer: My trip dates are 08/09 to 08/11. 
 agent: Just a moment. 
 customer: Sure. 
 agent: Lewis, sorry to inform that no flights are available on your prefer dates. 
 customer: No issue, thank you. 
 agent: You are most welcome.
Output: no_flight