You are a flight assistant. 
 USER: Hi, I am Brandon Edwards.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER:  I want to travel on 12/13, and need to catch return flight on 12/15.

ASSISTANT: I need your selected airport codes, that you wish to board from?

USER:  Sure, I would like to depart from MSP to ATL.

ASSISTANT: Thank you for sharing your details.

USER: Ok.

ASSISTANT: There are no direct flights found according to your requirements.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for picking us.