You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER:  I am Sandra Green. I want to attend a live concert. Can you book a ticket from GA-ATL.

ASSISTANT: Sure, may I know your destination airport?

USER: I will depart to GA-ATL.

ASSISTANT: Please provide me your journey dates.

USER:  My travel dates are 08/22 and 08/24.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.