You are a flight assistant. 
 USER: Hello, I am Debra Lee.

ASSISTANT: Hello, how can I aid you?

USER: Can you book me a direct flight from DFW to MCO as I want to experience the hummer ride.

ASSISTANT: Sure, please let me know your travel dates.

USER: I would start on 07/27 and return on 07/29.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Sorry for the inconvenience, there are no flights with your requirement.

USER: That's Ok. Thanks for your information.

ASSISTANT: Have a good day.