You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Anna Carter. Can you help me in booking the ticket from PHL to ATL?

ASSISTANT: Sure, I will help you out.

USER: Thanks.

ASSISTANT: May I know your travelling dates please?

USER: My planning dates are from 11/14 to 11/16.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there are no flights found.

USER: That's fine. Thank you.

ASSISTANT: Thank you for choosing our services.