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. 
 agent: Hello. 
 customer: I am Carolyn Mitchell. 
 agent: How may I assist you? 
 customer: Owing to an emergency, I want to cancel my recent reservation. Can you help me out? 
 agent: Please hold on a moment. 
 customer: Ok, take your time. 
 agent: Thanks for your time, there is no reservation found on your name to cancel it. 
 customer: That's ok. Anyways, thank you. 
 agent: Thanks for contacting us.

Output: no_reservation


Input: Consider Input: customer: Hi. 
 agent: Hello. How may I help you? 
 customer: I want to change my reservation due to health problem, can you help me? 
 agent: Yes, I am here to help you. Let me know your name please. 
 customer: Myself George Edwards. 
 agent: Edwards, please wait for a while. I will check your reservation status and get back to you. 
 customer: Ok. 
 agent: Edwards, I have not found any reservation by your name in our database. 
 customer: No problem, thanks for checking. 
 agent: You are most welcome and thank you for contacting us.

Output: no_reservation


Input: Consider Input: customer: Hello. 
 agent: Hello. 
 customer: I am Patrick Williams. 
 agent: How may I guide you today? 
 customer: I want to book a ticket from MCO to IAH, can you please book a ticket? 
 agent: Sure, I will help you with that. Can you please share you preferable journey dates? 
 customer: My travelling dates are on Feb 05 and Feb 07. 
 agent: Do you have any class preference? 
 customer: No. 
 agent: Is there any connection limit? 
 customer: No. Sorry, I need single connection. 
 agent: Do you have any specifications? 
 customer: I want to return in the afternoon. 
 agent: I found a flight ticket for you with 0 connection is it ok for you? 
 customer: I am okay with it. You can proceed. 
 agent: The flight number is 1008 in economy class, I confirmed your ticket successfully. 
 customer: Thank you, may I know the airline name. 
 agent: The airline is Delta. 
 customer: Thank you. 
 agent: Thank you for reaching us.
Output: book