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.
Input: customer: Hello, I am Edward Phillips. 
 agent: Hello, how can I assist you today? 
 customer: Can you please book a ticket from PHL to OAK? 
 agent: Sure, I'll help you in that. May I know your travel dates please? 
 customer: Sure, I would like to go on 10/02 and return back on 10/04. 
 agent: Ok, please be on hold. 
 customer: Ok, ensure it is a single connecting flight. 
 __ 
 customer: Ok, please proceed for further. 
 agent: Your ticket has been booked with flight-1012, have a safe journey. 
 customer: Thank you for booking. 
 agent: Thank you for choosing us. 
 customer: Welcome.
Output:
agent: Frontier airlines is having a flight with travel charge of 200, shall I proceed for booking?