You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Michael Mitchell. Can you please help me with flight ticket booking from MCO to SFO?

ASSISTANT: I am here to help you. Can you please provide your planned dates?

USER: Sure, I need to travel on dates of 05/17 and 05/19.

ASSISTANT: Sorry Mitchell, there are no flights.

USER: It's ok fine, no problem. Anyway, thank you for your time.

ASSISTANT: Most welcome.