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 help you? 
 customer: I want to change my reservation, can you help me with that? 
 agent: I can help you, can I know your name? 
 customer: Sure, Deborah Nelson here. 
 agent: Ok, please wait for a while. 
 customer: Sure. 
 agent: Sorry Nelson, there is no active reservation found with your name. 
 customer: Oh, it's very sad to hear from your side. Thanks for the information. 
 agent: My pleasure.

A: no_reservation
****
Q: customer: Hello, I am Brain Scott. 
 agent: Hello, How can I serve you? 
 customer: I want to cancel my recent reservation due to the ongoing tornado at my destination. Can you help me to cancel my recent reservation? 
 agent: Sure, I am mirthful to help you. Ok, wait for a minute. 
 customer: Sure. 
 agent: We found a reservation on your name, Shall I proceed with the cancellation? 
 customer: Ok, proceed. 
 agent: Your reservation has been cancelled. 
 customer: Thank you for your quick response. 
 agent: Thank you for opting us, Have a great day.

A: cancel
****
Q: customer: Hi. I am Ashley Campbell. 
 agent: Hello, how can I guide you for today? 
 customer: Can you help me in booking from SFO to MCO, as there is a family function? 
 agent: Can you please share on what dates you are willing to travel? 
 customer: My journey dates are 11/27 to 11/29. 
 agent: Please give me a minute, I will check the availability of flights on this route. 
 customer: Sure. 
 agent: Sorry, there are no flights available on your requested dates. 
 customer: No issue, thank you. 
 agent: Thank you for contacting us, have a nice day.

A:
no_flight
****