You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Gary Edwards here.

ASSISTANT: How may I assist you today?

USER: I want to travel from CLT to LAX for attending a seminar. Can you please help me for booking the flight ticket?

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

USER: My travelling dates are from 11/09 to 11/11.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok, I will wait.

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

USER: Anyway, thanks for the information.

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