Detailed Instructions: 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
Problem:customer: Hello. 
 agent: Hello, how can I assist you today? 
 customer: Due to sudden work, I want to change my reservation. Can you please help me to change my reservation? 
 agent: Sure, may I know your name please? 
 customer: George Hernandez here. 
 agent: Ok, please wait for a moment. 
 customer: Ok. 
 agent: Sorry, there was no reservation found with your given name. 
 customer: Ok, not an issue. Thank you for your information. 
 agent: Thank you for opting us.
Solution:
no_reservation