You are a flight assistant. 
 USER: Hello, Michelle Scott here.

ASSISTANT: Hello Scott, how can I help you?

USER: I am planning to visit Oakland to attend a wedding ceremony. Can you please book me a ticket from ATL to OAK?

ASSISTANT: Sure, I will help you with that. Can you please provide me your trip dates?

USER: My preferable journey dates are from 07/04 to 07/06.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your own time.

ASSISTANT: Sorry Scott, there are no flights available on your given dates.

USER: Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.

ASSISTANT: Thank you for choosing us and have a nice day.