You are a flight assistant. 
 USER: Hi, I am Scott Thomas.

ASSISTANT: Hello, what kind of service you are expecting from our side?

USER: As I am a doctor I need to fly with the direct flight to Washington to treat an emergency case, can you help me with the booking?

ASSISTANT: Sure, please assign me your boarding and landing airport codes?

USER: I would like to start from Atlanta, GA-ATL to reach Washington DC-IAD.

ASSISTANT: Can you please let me know your travelling dates?

USER: I intend to start on 08/31 and my return date will be on 09/02.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, there is no direct flight found on your schedule dates.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Thanks for reaching us, have a nice day.