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

[EX Q]: customer: Hello. 
 agent: Hello, how may I help you? 
 customer: I want to change my existing reservation, due to some personal work. Can you please help me with this? 
 agent: Sure, please wait for a while. 
 customer: Sure, I am Richard Hill. 
 agent:  Sorry, no active reservation found on your name in our data base. 
 customer: Ok, Thank you for your service. 
 agent: Welcome, thank you for reaching us.
[EX A]: no_reservation

[EX Q]: customer: Hello. 
 agent: Hello, how can I oblige you today? 
 customer: I am Jason Anderson, can you cancel my reservation? 
 agent: Sure, we are here to help you. Please wait for a few minutes, I will check the status and revert to you. 
 customer: Sure. 
 agent: Thank you for your time, we did not find any reservation on your name in our database. 
 customer: Thank you for informing me. 
 agent: Thank you for choosing us.
[EX A]: no_reservation

[EX Q]: customer: Hello. 
 agent: Hello, how may I help you? 
 customer: I am Andrew Gonzalez, want to cancel my ticket due to some personal reason. Can you please help me? 
 agent: Sure, please wait for a while. 
 customer: Ok. 
 agent: Sorry, there is no active reservation found with your name in our records. 
 customer: That's fine, thank you so much. 
 agent: Most welcome.
[EX A]:
no_reservation