You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Can you please help me with booking a flight ticket from PHL to IAD?

ASSISTANT: Sure, can you please mention with your dates of journey?

USER: My travel dates are Apr 25 and 27.

ASSISTANT: May I know your good name please?

USER: My name is Justin Wright.

ASSISTANT: Are you looking for any other help from my side please?

USER: I prefer to travel in business class and would like to return at afternoon.

ASSISTANT: Please wait for a mean while.

USER: Ok, make sure I need a stopover in between the journey.

ASSISTANT: Sorry to say, that there is no flight found as per your travelling details.

USER: Ok, no issues. Thank you.

ASSISTANT: You are welcome.