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
--------
Question: customer: Hello. 
 agent: Hello, how can I assist you? 
 customer: Can you help me booking a flight ticket from DTW to AUS? 
 agent: Sure, I can help you with that. May I know your travel dates please? 
 customer: I will start on 05/08 and return on 05/10. 
 agent: Do you need break in between your journey? 
 customer: I need a direct flight. 
 agent: Please let me know if you have any other specifications. 
 customer: No. 
 agent: May I know your good name please? 
 customer: I am Richard Lopez. 
 agent: Sorry to inform you that there are no direct flights available for you on those dates. 
 customer: No problem, thank you for the information. 
 agent: Thank you for reaching us.

Answer: no_flight


Question: customer: Hello. I am Christine Scott. 
 agent: Hello, how can I aid you today? 
 customer: I would like to book a ticket from ORD to DCA, can you please help me out? 
 agent: Sure, when are you planning to start and return on? 
 customer: I am travelling on these dates AUG 11th and 13th. 
 agent: Do you need a connecting flight or a direct flight? 
 customer: I need a connecting flight. 
 agent: There are no flights found with the given details. 
 customer: Ok no problem, thank you for your services. 
 agent: Thank you, please visit again.

Answer: no_flight


Question: customer: Hello. 
 agent: Hello, how can I help you? 
 customer: My holiday trip has been cancelled, could you please help me with cancelling my recent reservation? 
 agent: Sure, may I know your name please? 
 customer: My reservation was done under the name Brian Davis. 
 agent: Ok, please wait for a moment. 
 customer: Sure, take your time. 
 agent: Sorry, there was no reservation found with your given name. 
 customer: Ok, not an issue. Anyways, thank you for the information. 
 agent: Thank you for opting us.

Answer:
no_reservation