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: Hi. I ma Margaret Thompson.
agent: Hello, How can I assist you?
customer: I would like to book a ticket from MSP, can you help me with booking to SFO?
agent: Sure, Please help me with your travel dates.
customer: My travelling dates are from 05/14 to 05/16.
agent: Please give a minute.
customer: Ok.
agent: Sorry, No flights found with your preferable dates. Thank you, Have a great day.
customer: Thank you.
Example Output: no_flight

Example Input: customer: Hello, I am Michelle Parker.
agent: Hello, how can I be your helping hand today?
customer: As, I am a science student, I want to visit Perot Museum of nature and science for my research work in Dallas & Fort Worth, TX - DFW. Can you avail me to book a flight with one way station?
agent: Sure, we are happy to help you for booking.
customer: Thank you.
agent: Let me know your preferred journey dates.
customer: I want to fly on 12/09 and I intend to recur on 12/11.
agent: Ok, May I know your budget?
customer: I have sufficient amount for this trip, I can afford 5000.
agent: Ok, Can you please share your boarding point?
customer: I want to board from Oakland, CA - OAK.
agent: Ok, please wait for a couple of minutes.
customer: Sure, make it fast.
agent: Sorry to inform you that, there were no flight running at that location due to abnormal weather conditions.
customer: Ok, I will choose another way to reach my destination. Anyways thank you for sharing the information.
agent: Thank you for approaching our service.
Example Output: no_flight

Example Input: customer: Hello, I am Anthony Allen.
agent: Hello, how can I help you?
customer: I want to change my existing reservation due to postpone of my interview at Oakland. Can you please help me?
agent: Sure, I am here to help you. Please wait for a while.
customer: Sure.
agent: There is no reservation found on your name.
customer: No problem, thank you for the information.
agent: Thank you for approaching us.
Example Output:
no_reservation