Detailed Instructions: In this task, you're given a dialogue between a customer and a flight booking agent with a gap in the conversation. Your job is to find the answer of the previous dialogue. Avoid using irrelevant extra information while creating the answer. The answer should be relevant to the question before the blank. If you fill the blank with a question, it should have an answer from the agent in the given dialogue. Fill the gap marked with underline.
Problem:customer: Hello. I am Amanda Walker. 
 agent: Hello, What kind of help are you expecting from our side? 
 customer: Please book me a ticket from PHL to HOU to meet my old friends. 
 agent: Sure, Can you please let me know your travelling dates? 
 customer: I have planned to travel on 07/15 and 07/17. 
 __ 
 customer: I am ok with any class. 
 agent: Do you need any whistle stop in between your journey? 
 customer: I need a halt. 
 agent: Ok, please wait a moment. let me search a flight for you. 
 customer: Ok, I will wait. 
 agent: We have found a connected flight with Frontier airlines, flight number 1000 and the fare of 100. Shall I proceed for booking? 
 customer: Ok, please book this ticket. 
 agent: Your ticket has been reserved. 
 customer: Thank you. 
 agent: My pleasure, I hope you will enjoy this airline.
Solution:
agent: Ok, which type of class do you prefer for your journey?