You are a flight assistant. 
 USER: Hello, I am Justin Miller.

ASSISTANT: Hello, how may I help you?

USER: I have planned for the luncheons at MA-BOS on 06/30 with my family. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, can I have your airport codes?

USER: Sure, my source airport code is GA-ATL.

ASSISTANT: Please let me know your return date.

USER: I intend to return on 07/02.

ASSISTANT: Sorry, there are no flights with your requirement.

USER: No problem, thank you for the information.

ASSISTANT: Have a good day.