You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Eric Roberts. I am planning to attend a Business Meeting in PHL from MCO. Can make a reservation for me?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: Sure, I am willing to travel on these days that is on 12/17 and return on 12/19.

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

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

ASSISTANT: Welcome, have a nice day.