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

Input: Consider Input: customer: Hello.
agent: Hello, how can I help you today?
customer: Can you please help me to book a flight ticket from MCO to LAX?
agent: Sure, please share your planned travel dates?
customer: My travel dates are Oct 10 to Oct 12.
agent: Can I have your name please?
customer: My name is Dennis Hernandez.
agent: Let me know your connection limit?
customer: I need a flight with single connection.
agent: Any other requirements to be met?
customer: I prefer business class. Sorry, I need a direct flight.
agent: Sorry, no flights found with your given details.
customer: No problem, thanks for your information.
agent: Thank you for reaching us.

Output: no_flight

Input: Consider Input: customer: Hi.
agent: Hello, How exactly I can serve you the best today?
customer: I need to change my trip dates in my recent reservation, can you serve me in changing this?
agent: Sure, I will help you with that.
customer: Thanks.
agent: May I know your name to check your details in our database?
customer: Lisa Evans is my name, you can check with this.
agent: Please wait a while.
customer: OK.
agent: Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
customer: OK. Not a problem, Thanks for your time with us.
agent: Thank you for choosing us.

Output: no_reservation

Input: Consider Input: customer: Hello.
agent: Hello, how may I help you?
customer: I am Mary Lee, want to travel from LAX to ATL.
agent: May I know your trip dates?
customer: My trip dates are from 08/27 to 08/29.
agent: In Frontier airline, there is a flight for you with 1 connection and fare is 100. Shall I proceed?
customer: Yes, please.
agent: Your ticket is booked.
customer: Thank you.
agent: Most welcome.
Output: book