You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sandra Perez.

ASSISTANT: How may I aid you?

USER: Can you please help me in booking a flight ticket from PHL to MCO as I have to attend a business meeting at Orlando?

ASSISTANT: Sure, may I know your departure and arrival dates?

USER: My depart date is Nov 30 and return will be on Dec 02.

ASSISTANT: Do you have any airline preferences?

USER: No, I am ok with any airline.

ASSISTANT: Do you prefer either business or economy class?

USER: Any class is ok for me.

ASSISTANT: May I know your connection limit?

USER: I prefer a flight with single connection.

ASSISTANT: Do you have any specifications?

USER: I need to depart in the evening time.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.