You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Carolyn Martinez here.

ASSISTANT: How can I aid you?

USER: Can you please help me in booking the ticket from DEN to CLT? As I'm planning to attend a wedding reception over there.

ASSISTANT: Sure, may I know your journey dates please?

USER: Sure, my travel dates are 08/06 and 08/08.

ASSISTANT:  Carolyn Martinez, there are no flights available in your route.

USER: That's fine, I'll reach my destination by some other mode of transport. Thank you for giving the information.

ASSISTANT: Thank you for approaching us.