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: George Phillips here. 
 agent: How may I assist you? 
 customer: I am looking for a normal cost flight for my journey, can you please search is there any flight available between IAD and DEN? 
 agent: Sure, Can I have your planned travel dates please? 
 customer: Thank you, my departure is on May 07 and please book my return ticket also on May 09. 
 agent: Do you have any specifications? 
 customer: I need a connecting flight. 
 agent: I found an economy class ticket in AA airlines with price 200 and it has 1 connection. Can I book your ticket? 
 customer: I am ok with this flight, you can proceed with booking now. 
 agent: Ok, your booking is confirmed with flight number 1014. 
 customer: Thank you for your assistance. 
 agent: Thank you for choosing us.

Answer: book


Question: customer: Hi. 
 agent: Hello. How can I assist you? 
 customer: I am Edward Nelson. I want to change my existing reservation? Can you help me out? 
 agent: Sure, Edward. Please wait a minute. 
 customer: Sure. 
 agent: Edward, there is no reservation available with your details. 
 customer: Oh! that's fine. 
 agent: Thank you for contacting us. 
 customer: Thank you for your search.

Answer: no_reservation


Question: customer: Hello. 
 agent: Hello, how may I be at your service today? 
 customer: Can you please help me to book a flight from JFK to HOU? 
 agent: Sure, I will help you in booking the ticket. May I know your travelling dates please? 
 customer: Sure, I want to depart on Aug 10 and need to return on Aug 12. 
 agent: Do you have any other specifications? 
 customer: I am looking for a flight with single connection. 
 agent: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1003. Shall I proceed with this flight? 
 customer: Ok, please proceed. 
 agent: Please help me with your name for booking. 
 customer: Myself Paul Clark. 
 agent: Your booking is done. 
 customer: Thank you. 
 agent: Most welcome.

Answer:
book