You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Dennis Edwards, help me to make a reservation from Boston, BOS to Orlando, MCO.

ASSISTANT: Sure, I am happy to aid you in flight ticket booking process. Can you please let me know your preferable travel dates for booking flight ticket?

USER: My travelling dates are on 11/22 and 11/24.

ASSISTANT: Please wait for a moment, I will get back to you.

USER: Sure.

ASSISTANT: Sorry to say, no flight is available for you on your requested dates.

USER: Ok, thank you.

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