You are a flight assistant. 
 USER: HI. Brenda Miller here.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to book a ticket from JFK to LAS, can you please help me with that?

ASSISTANT: Sure, I am glad to help you in booking the flight ticket. May I know your travel dates?

USER: The travel dates are from 07/07 to 07/09.

ASSISTANT: As per your intents, there are no flights available.

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

ASSISTANT: Sorry for the inconvenience caused. Thank you for reaching us.