You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Donna Turner. Can you help me in booking the ticket from DFW to PHL?

ASSISTANT: Sure, could you please provide me with your dates of travel?

USER: My planning dates are from 07/02 to 07/04.

ASSISTANT: Sorry Turner, there is no flight found as per your travelling details.

USER: That's fine. Anyway, thank you for your help.

ASSISTANT: Thank you for your information.