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
Q: customer: Hello. 
 agent: Hello. How can I help you? 
 customer: I want to celebrate my mother birthday, I would like to book a ticket. 
 agent: May I know the journey details? 
 customer: My source airport code is EWR and my destination airport code is LGA. 
 agent: Help me with the dates. 
 customer: My prefer dates are from 07/24 to 07/26. 
 agent: May I know the name? 
 customer: My name is Amanda Scott. 
 agent: Sorry, no flight found. 
 customer: Ok, no issue. 
 agent: Thank you. 
 customer: Thank you for your information.
A:
no_flight