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. 
 customer: I am Edward Hill. 
 agent: How may I help you? Nice to meet you Edward. 
 customer: Help me in booking my flight ticket to New York LGA. 
 agent: Sure, tell me your travel dates please? 
 customer: My travelling dates will be 04 to 06 Jan. 
 agent: Now your source airport code please? 
 customer: My source code is OAK. 
 agent: Thanks for your patience. I have found Hawaiian airlines which flies with one connection. 
 customer: You can proceed. 
 agent: Sure, your flight ticket has been confirmed now. 
 customer: Thank you. 
 agent: Thank you.

Answer: book


Question: customer: Hi. 
 agent: Hello, how can I help you? 
 customer: I am planning for a round trip to TX-DFW with my sister's. Please help me with booking a direct flight. 
 agent: Sure, please share me your travelling dates? 
 customer: I need to go on 10/10 to 10/12. 
 agent: Do you have any specifications? 
 customer: I can pay up to 500. 
 agent: Please wait for few minutes. 
 customer: Ok. 
 agent: Sorry, there is no flight with your specifications. Can I know your name? 
 customer: Ok, thanks for the information. I am Samuel Harris. 
 agent: Thank you for reaching us.

Answer: no_flight


Question: customer: Hi. 
 agent: Hello, how may I help you? 
 customer: I want to book a ticket from DCA to ATL, can you help me? 
 agent: Sure, I am here to assist you. Can you please tell us your name? 
 customer: I am David Thompson. 
 agent: Thank you. May I know your travel dates? 
 customer: My travel dates are 10/27 and 10/29. 
 agent: Ok, please let me know your preferences. 
 customer: I want to travel in normal cost airline. 
 agent: Ok, please wait for sometime. 
 customer: I prefer a connecting flight. 
 agent: Sorry, there is no flight available on your given travel dates. 
 customer: No problem, thanks for checking. 
 agent: You are welcome and thank you for choosing us.

Answer:
no_flight