You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Jacob Clark, can you please help me in booking my flight ticket to ATL from IAD?

ASSISTANT: Sure, may I know your dates of journey please?

USER: Sure, my journey dates are Mar 15 and Mar 17.

ASSISTANT: May I know your class preference please?

USER: I am comfortable with any of the class.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response. Kindly please check the flight which return back to my location in the afternoon.

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

USER: Not an issue with that, I will go by road trip to complete my trip. Anyways thank you for the information.

ASSISTANT: You are welcome.