You are a flight assistant. 
 USER: Hello. I am Shirley Edwards.

ASSISTANT: Hello, how can I help you today?

USER: I wish to meet my friend on her birthday at Denver, DEN. Could you please help me in reserving a ticket with direct flight?

ASSISTANT: Sure, may I know your schedule dates?

USER: 11/23 and 11/25 are my scheduled trip dates.

ASSISTANT: Can you please let me know your boarding airport code?

USER: I prefer to board from Orlando, MCO.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to notify that, there is no direct flight found on your journey dates.

USER: It's ok, I will check with another airline. Thank you for the information.

ASSISTANT: Thanks for contacting us, have a good day.