Teacher: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
Teacher: Now, understand the problem? Solve this instance: customer: Hello. 
 agent: Hello, How can I best serve you today? 
 customer: I am planning to make a journey from MCO to IAD. Can you please help me with the booking? 
 agent: Sure, can you please mention your depart and arrival dates of your journey? 
 customer: My journey dates are Nov 29 to Dec 01. 
 agent: Do you like to go with a connecting or direct flight? 
 customer: I need a direct flight. 
 agent: Can I know your good name to proceed further? 
 customer: I am Larry Edwards. 
 agent: Sorry, no flights are available in this route as per your requested dates. 
 customer: Ok, no issues. Thank you for the information. 
 agent: Thank you for choosing us.
Student:
no_flight