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 assist you now? 
 customer: Can you please reserve me a flight ticket from ATL to LAX? 
 agent: Sure, please share me your planned journey dates? 
 customer: My trip dates are Feb 08 and Feb 10. 
 agent: Do you want a connecting flight? 
 customer: Yes, I need a connecting flight. 
 agent: Is there any other requirement? 
 customer: No. 
 agent: Thank you for the details, sorry there is no flight available on your given journey data. 
 customer: Ok, no problem. Thank you. 
 agent: Thank you for visiting us. May I know your name? 
 customer: I am Dorothy Johnson. 
 agent: Thank you for your name.
A:
no_flight