You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Catherine Davis here. I would like to book a ticket to Minneapolis for a family festival.

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My trip dates are Feb 22 and Feb 24.

ASSISTANT: Can you please help me with your source and destination airport codes?

USER: My airport codes are MCO and MSP.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

USER: No issue, I will make another arrangement. Thank you.

ASSISTANT: Thank you for choosing us.