Q: 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 support you? 
 customer: As I need your assistance in changing my trip dates because as my cousin's marriage dates has been changed. Can you please help me with that? 
 agent: Sure, I am here to assist you. 
 customer: Thank you so much. 
 agent: To check the status of your reservation, we need your good name. 
 customer: My reservation is done with the name Emily Adams. 
 agent: Ok, please wait for a while. 
 customer: Sure. 
 agent: Thank you for your time, There was no reservation found on your given name. 
 customer: Ok, its not a problem. Thank you. 
 agent: Thank you for opting us.
A:
no_reservation