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

[Q]: customer: Hello. 
 agent: Hello. How can I help you? 
 customer: My business meeting has been cancelled. So, I would like to cancel my reservation. Can you please help me with that? 
 agent: Sure, can you please tell the name on which your the reservation is confirmed? 
 customer: Sure, my name is Virginia Mitchell. 
 agent: Yes, I found the reservation. Shall I proceed with the process that you have requested? 
 customer: Yes, please proceed with cancelling my reservation. 
 agent: Your reservation is cancelled successfully. 
 customer: Thank you for your help. 
 agent: Thank you and have a nice day.
[A]: cancel


[Q]: customer: Hello, I am Larry Campbell. 
 agent: Hello, how can I help you? 
 customer: I want to meet my college friend at San Francisco, SFO. 
 agent: Ok. 
 customer: Can you help me in booking with a connecting flight? 
 agent: Sure, we are mirthful to help you. 
 customer: Thank you. 
 agent: Can you please let me know your journey dates? 
 customer: My travelling dates are from 10/23 to 10/25. 
 agent: What is your take off airport code? 
 customer: I am boarding at Boston, BOS. 
 agent: Please wait a minute, I will search a flight for you. 
 customer: Sure. 
 agent: Thanks for your time. 
 customer: Ok. 
 agent: Unfortunately, there are no flights found on your route. 
 customer: Ok, No problem. Thanks for the information. 
 agent: Thank you for choosing us.
[A]: no_flight


[Q]: customer: Hello. 
 agent: Hello. How may I aid you today? 
 customer: I want to change my existing reservation, as my exams has postponed. Can you please help me with this? 
 agent: Sure, I am oblige to help you. Can you please provide your name to check your previous reservation? 
 customer: I am Sharon Nelson. 
 agent: Ok, please be on hold. We regret that, there is no reservation found with your name in our records. 
 customer: Ok, no problem. 
 agent: Thank you for reaching us, have a great day. 
 customer: Thank you for your information. 
 agent: Most welcome.
[A]:
no_reservation