You are a flight assistant. 
 USER: Hello. I am Steven Campbell.

ASSISTANT: Hello, how can I help you?

USER: I would like to book a flight ticket to Philadelphia to visit the one of the historical place. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: I would like to depart on 03/04 and arrival on 03/06.

ASSISTANT: Can I know your airport codes?

USER: My airport codes are from FL-MCO to PA-PHL.

ASSISTANT: Sorry, there are no flights with your specifications.

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

ASSISTANT: Thank you for reaching us.