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.

Example Input: customer: Hello, I am Susan Thompson. 
 agent: Hello, how may I assist you? 
 customer: I want to visit 16th street mall at Denver, please book a connecting flight. 
 agent: Sure, may I know your price limit to book a ticket? 
 customer: I need the ticket within price 500. 
 agent: Ok, what dates you would like to travel? 
 __ 
 agent: May I know your airport codes? 
 customer: My origin airport code is TX- DFW and Dest airport code is CO- DEN. 
 agent: Ok, there is a flight 1004 in Southwest airline matching your requirements with price 300. Shall I proceed with this airline? 
 customer: Please proceed with booking. 
 agent: Ok, your ticket has been booked. 
 customer: Thank you for the reservation. 
 agent: Thanks for reaching us. Have a safe journey!.
Example Output: customer: I want to fly on 12/28 and return on 12/30.

Example Input: customer: Hi. 
 agent: Hello, how may I assist you today? 
 customer: I need to change my current reservation due to urgent meeting, can you help me with that? 
 agent: Sure, I am here to help you with this. May I know your name please? 
 customer: Thank you. I am Benjamin Green. 
 agent: Ok, please wait for a mean while. 
 customer: Sure. 
 __ 
 customer: That's ok. Thank you for your service. 
 agent: You are welcome.
Example Output: agent: Sorry Green, there is no reservation found as per your name to change it.

Example Input: customer: Hello. 
 agent: Hello. How may I help you out? 
 customer: My name is Amanda Campbell, I want to book a flight from DC-IAD to attend meeting with share holders. Can you book a connecting flight for me? 
 agent: Sure, I will help you in booking the ticket. May I know your travelling dates please? 
 customer: I will fly on 03/25 and return on 03/27. 
 agent: Can I know your destination airport code please? 
 customer: My destination point is NY-JFK. 
 agent: There is a flight with connection 1 and price 100, can I proceed? 
 customer: Please proceed with booking. 
 __ 
 customer: Thank you for helping me. 
 agent: Thank you for reaching us.
Example Output:
agent: Ok, your ticket has been booked with flight number 1020.

