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

Example Input: customer: Hello.
agent: Hello. How may I assist you?
customer: Please reserve me a flight ticket from LGA to DEN.
agent: Sure, may I know your connection limit?
customer: My connection limit is 1.
agent: May I know your trip dates?
customer: My travel dates are May 21 and May 23.
agent: Do you prefer any specifications?
customer: No.
agent: Please share your name?
customer: My name is Brandon Parker.
agent: Sorry, no flights found on your route.
customer: No problem, thank you for the information.
agent: Thank you.
Example Output: no_flight

Example Input: customer: Hi.
agent: Hello. How can I aid you?
customer: I would like to attend live music concert at Charlotte, can you please reserve fight ticket from OAK to CLT?
agent: Sure, may I know the planned travel dates?
customer: Sure, my planned travelling dates are Jul, 31 and Aug, 02 respectively.
agent: Do you have any connection limit for this journey?
customer: I prefer for direct flight in my journey.
agent: Please provide me the name.
customer: John Scott here.
agent: Sorry, there are no flights are available for your desired intent.
customer: Ok, not an issue.Thank you for your information.
agent: Thank you for reaching us.
Example Output: no_flight

Example Input: customer: Hi,.
agent: Hello, may I know your name please?
customer: I"m Dorothy Baker.
agent: How can I best serve you?
customer: Please cancel my recent reservation.
agent: Ok, please be on hold.
customer: Sure.
agent: Thanks for waiting. As you informed us to cancel your reservation, but there is no reservation found with your name.
customer: Thanks for the assistance.
agent: Thanks for reaching us, hope to serve you again.
customer: Thanks.
Example Output:
no_reservation