You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Debra Brown.

ASSISTANT: How can I render you?

USER: I would like to visit Lady Bird Lake at Philadelphia with my friend, please help me in booking a ticket from MCO to PHL.

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My travelling dates are 03/20 and return on 03/22.

ASSISTANT: Ok, do you have any other specifications?

USER: I need a halt in between the journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing us, have a great day.