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
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Question: customer: Hello. 
 agent: Hello. How can I assist you at this moment? 
 customer: I am Pamela Walker here. I am planning to visit a Houston city to meet my grandfather in IAH from LAS. Can you find a flight ticket for me? 
 agent: Sure Pamela Walker, I will help you with that. Can I have your travel dates please? 
 customer: Ok, my preferable dates are on 12/19 and back on 12/21. 
 agent: Ok Pamela Walker, please wait a moment to check flight availability. 
 customer: Sure. 
 agent: AA airlines running a flight in your route with connection 1 and the fare of the ticket is 200. Shall I proceed with booking? 
 customer: Yes, you can reserve the ticket. 
 agent: Ok Pamela Walker, your ticket booking has done and the flight number is 1021. 
 customer: Thank you for spending your time. 
 agent: Thank you for choosing us, have a great journey.

Answer: book


Question: customer: Hello, I am Larry Campbell. 
 agent: Hello, how can I help you? 
 customer: I want to meet my college friend at San Francisco, SFO. 
 agent: Ok. 
 customer: Can you help me in booking with a connecting flight? 
 agent: Sure, we are mirthful to help you. 
 customer: Thank you. 
 agent: Can you please let me know your journey dates? 
 customer: My travelling dates are from 10/23 to 10/25. 
 agent: What is your take off airport code? 
 customer: I am boarding at Boston, BOS. 
 agent: Please wait a minute, I will search a flight for you. 
 customer: Sure. 
 agent: Thanks for your time. 
 customer: Ok. 
 agent: Unfortunately, there are no flights found on your route. 
 customer: Ok, No problem. Thanks for the information. 
 agent: Thank you for choosing us.

Answer: no_flight


Question: customer: Hi. 
 agent: Hello, how can I help you? 
 customer: Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that? 
 agent: Sure, may I know your name? 
 customer: I am Carol Clark. 
 agent: Please wait a second. 
 customer: Sure. 
 agent: Sorry, no reservation found on your name. 
 customer: Ok, no problem. Thanks for the information. 
 agent: Thank you for opting us.

Answer:
no_reservation