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

customer: Hello. 
 agent: Hello, how can I aid you? 
 customer: I would like to travel from BOS to CLT as a business trip. 
 agent: Sure, can you share your journey dates? 
 customer: My trip dates are 09/26 and 09/28. 
 agent: Do you have any preferences? 
 customer: I need break in my journey. 
 agent: May I know your name? 
 customer: Emma Harris here. 
 agent: Sorry, there is no flight on your given dates. 
 customer: No problem, Thanks for the information. 
 agent: Thank you for opting us.
no_flight

customer: Hello, I am Kimberly Turner. 
 agent: Hello, what can I do for you today? 
 customer: I need to change my reservation as my get together program postponed. Can you help me? 
 agent: Sure, please wait for few minutes. 
 customer: Sure. 
 agent: There is no recent reservation found on your name in our data base. 
 customer: That's Ok, thanks for your assistance. 
 agent: Thank you for reaching us.
no_reservation

customer: Hello. 
 agent: Hello, how can I serve you? 
 customer: I want to  cancel my recent reservation due to sudden postpone of my exams dates. 
 agent: Sure, we are here to help you. 
 customer: Can you help me with that? 
 agent: May I know your name please? 
 customer: I am Laura Wright. 
 agent: Please wait for a while. 
 customer: Sure. 
 agent: Thanks for your time, there is no active reservation found in your name. 
 customer: Ok, no issues. Thank you. 
 agent: Thank you for reaching us.
no_reservation