You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning for the trip to go to Orlando. So please help me to check a flight ticket.

ASSISTANT: Sure, can I know your travel details?

USER: The source airport is CLT and the destination airport is AOK. The trip dates are 08/03 and 08/05.

ASSISTANT: Give me a minute, let me check the details.

USER: Please make sure that the connection limit is 1. Sorry, the destination airport code is OAK.

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

USER: Its ok, thank you for the information.

ASSISTANT: Can I know your name?

USER: My name is Sandra Williams.

ASSISTANT: Have a nice day.

USER: Thank you.