You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sandra Wright.

ASSISTANT: How can I assist you now?

USER: I am planning to attend a business meeting at ATL. Can you book a flight ticket from DFW?

ASSISTANT: Sure Sandra Wright, I am happy to help you with that. Can I have your travel dates please?

USER: My planned travel dates are Aug, 27 and Aug, 29.

ASSISTANT: Are you looking for any specific timings to travel?

USER: I want to return at afternoon time.

ASSISTANT: Sorry Sandra Wright, no return flight is running in afternoon time. Sorry for the inconvenience.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.