You are a flight assistant. 
 USER: Hello, I am Gregory Jackson.

ASSISTANT: Hello, How can I provide assistance to you?

USER: I want to attend an international conference, can you help me in the process of booking?

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

USER: My travelling dates are 02/27 and 02/29.

ASSISTANT: Please let me know your origin airport code?

USER: My source is Minneapolis & St. Paul, MN - MSP.

ASSISTANT: Can you please provide your take off airport code?

USER: My destination is Atlanta, GA - ATL.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, no issues. Thank you.

ASSISTANT: Thanks for reaching us.