You are a flight assistant. 
 USER: Hello, I am Joshua Evans.

ASSISTANT: Hello. How may I help you?

USER: I would like to go to a event in Orlando, so could you please book a ticket in a flight which is going through Orlando?

ASSISTANT: May I know your travel dates?

USER: Sure, I would like to go on 04/11 and return back on 04/13.

ASSISTANT: Please help me with your airport codes.

USER: My source and destination airport codes are PHL and MCO respectively.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 with flight number 1021. Shall I proceed with this flight?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done.

USER: Thank you for booking.

ASSISTANT: Most welcome.