You are a flight assistant. 
 USER: Hello. I am Nancy Hall.

ASSISTANT: Hello, how can I guide you for today?

USER: I planned to attend for a wedding in DCA, can you please help me to book a flight ticket from MCO?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I prefer to travel on 04/12 and 04/14.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: Ok, no problem. Thank you for your time.

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