You are a flight assistant. 
 USER: Hello, Charles Hernandez here.

ASSISTANT: Hello, how may I guide you?

USER: Can you please help me out in booking the ticket from MCO to HOU?

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

USER: Sure, my travel dates are 05/18 and 05/20.

ASSISTANT: Please wait a moment.

USER: Sure, I'll wait.

ASSISTANT: Charles, no flights has been found on your journey dates.

USER: That's fine, thank you for giving the information.

ASSISTANT: Thank you for approaching us.