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 may I assist you today? 
 customer: Please help me to book a flight ticket from MCO to ATL. 
 agent: Sure, may I know your travel dates? 
 customer: My journey dates are from Apr, 26 to Apr, 28. 
 agent: Please share me your name. 
 customer: Gregory Scott. 
 agent: Do you have any specifications? 
 customer: I need a single connecting  flight. 
 agent: Sorry, there is no flight at this moment. 
 customer: Thank you for your information. 
 agent: Thank you.
A:
no_flight