You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I'm Paul Phillips want to meet my sister-in-law who lives in Phoenix, can you book a ticket from ATL to PHX?

ASSISTANT: Sure, May I know your journey dates?

USER: Yes, my travel dates are 08/26 and 08/28.

ASSISTANT: Thanks for the details, Please wait a moment to check the availability.

USER: OK>.

ASSISTANT: Thank you for waiting, Sorry we found no flights available based on your given details.

USER: OK, thank you.

ASSISTANT: Thank you for reaching us, Have a great day.