You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself James Edward.

ASSISTANT: How may I guide you today?

USER: I would like to meet my brother at Denver, will you help me in booking the flight ticket from JFK to DEN?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your planned dates of travelling?

USER: My travelling dates are 08/05 and 08/07.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Ok, I will wait for your response.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us, have a great day.