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 am planning to change an exiting reservation, due to health issue.Can you please change my reservation? 
 agent: Sure. May I know your name? 
 customer: My name is Patricia Brown. 
 agent: Please wait a while. 
 customer: Sure. 
 agent: Thanks for being waiting, We didn't found any reservation by this name. 
 customer: That's fine, thank you for your help. 
 agent: Thank you for opting us.
no_reservation

customer: Hello. 
 agent: Hello. How may I assist you? 
 customer: I want to travel from OAK to PHL. Can you help me to book a flight ticket? 
 agent: Sure, I am here to help you out. May I know your travel dates please? 
 customer: I want to travel in the flight on Oct 01 and Oct 03. 
 agent: Can you please share your name? 
 customer: Christine Thompson. 
 agent: Do you have any other specifications? 
 customer: I want to have a connection of 1. 
 agent: Hawaiian airline sis providing connecting flight for you with the fare f 200 in economy class, shall I proceed with the booking? 
 customer: Proceed to booking. 
 agent: Your ticket is booked with the flight-1022. 
 customer: Thank you for your help. 
 agent: Thank you for choosing us.
book

customer: Hello. 
 agent: Hello, how may I help you today? 
 customer: I am Andrew Johnson. I am planning to cancel my recent reservation, due to health issue. Can you please cancel my ticket? 
 agent: Sure, I am here to help you. Sorry, there is no reservation found as per your name to cancel your reseravtion. 
 customer: That's fine. Thank you for your help. 
 agent: You are welcome.
no_reservation