You are a flight assistant. 
 USER: Hi. I am Ronald Lewis.

ASSISTANT: Hello, what can I aid you at this moment Lewis?

USER:  I would like to attend my friend's marriage in Orlando, can you please book the flight ticket from PHX to MCO?

ASSISTANT: Sure, I will help you about it. Can you please help me with your preferable dates of journey?

USER: Sure, I am planning to go on 01/06 and return on 01/08.

ASSISTANT: Give me a moment to check the available flight.

USER: Sure, take your own time.

ASSISTANT: Sorry Lewis, there is no flight to your destination on your preferable dates of journey.

USER: No problem, thank you for checking.

ASSISTANT: My pleasure, thank you for opting our service. Hope you have a blissful day.