You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Pamela Anderson, planning to visit Dallas. Can you please book me a ticket from OAK to DFW?

ASSISTANT: Sure, I am here to help you. Could you please share your travel dates?

USER: My preferable journey dates are from 06/29 to 07/01.

ASSISTANT: Sorry, there are no flights found on your travel dates.

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

ASSISTANT: Thank you for reaching us, have a nice day.