You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I am Stephanie Martinez.

ASSISTANT: OK.

USER: I need to fly Orlando, could you please help me in booking my flight ticket from PHL to MCO?

ASSISTANT: Sure, I can help you to book a flight ticket.

USER: Thank you.

ASSISTANT: May I know your start date and return date?

USER: My planned trip dates are 07/15 and 07/17.

ASSISTANT: Sorry, no flights are available on your desired route.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thanks for reaching us, hope to serve you better next time.