You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am planning to book a ticket from PHL to MCO to attend seminar, can you help me in booking?

ASSISTANT: Sure, help me with the trip dates?

USER: I am departing on Feb 25 and return on Feb 27.

ASSISTANT: Do you have any preferences?

USER: I do not have any specifications except connection limit 0.

ASSISTANT: May I know your name please?

USER: My name is Alexander Lopez.

ASSISTANT: Thank you for your details, we do not found any flights running in your specified routes.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.