You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Anthony Turner here.

ASSISTANT: How can I help you?

USER: Can you please help me in booking a ticket from DEN to PHL?

ASSISTANT: Can you please tell your travelling dates?

USER: Sure, my journey dates are 10/01 and 10/03.

ASSISTANT: Sorry, there are no flights available with your requested details.

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

ASSISTANT: Thank you and have a nice day.