You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Jonathan Evans.

ASSISTANT: How may I assist you?

USER: I would like to attend a flower festival at Detroit. Can you help me in my booking?

ASSISTANT: Please mention your travel dates.

USER: I will start my journey on 12/30. I will return on 01/01.

ASSISTANT: Could you please specify your travel codes.

USER: My source airport code is Atlanta, GA - ATL. My destination is MI - DTW.

ASSISTANT: There are no flights found for your requirement.

USER: Ok, Not an issue. Thank you.

ASSISTANT: Thanks.