Teacher: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
Teacher: Now, understand the problem? Solve this instance: customer: Hi, Edward Turner here. 
 agent: Hello Turner, how may I guide you? 
 customer: I have to meet my sister on her birthday, could you please help me to book my flight ticket from IAH to MSP? 
 agent: Turner, Could you please share me your journey dates? 
 customer: Sure, I have to depart on 12/07 and return back on 12/09. 
 agent: Sure, please wait for a while. 
 customer: Sure. 
 agent: There is a flight with Frontier airlines and the ticket cost is 100 only. Shall I proceed for booking the ticket? 
 customer: Yes, please book the ticket for me. 
 agent: Turner, your ticket is booked with the flight number 1012. 
 customer: Thank you so much for your help. 
 agent: You are welcome, thank you for contacting us.
Student:
book