You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I have planned to book a direct flight from Orlando, so please help me in booking.

ASSISTANT: Sure, we are blissful to help you. Can you share me your trip dates?

USER: My trip dates are on Sept 5th to 7th.

ASSISTANT: Can you share me your landing point?

USER: Sure, my landing airport code is DCA.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry to inform you that, there are no flights available on your requested dates.

USER: No worries, I will choose another airline to go.

ASSISTANT: For documentation, may I know your good name please?

USER: Sure, my name is Nicholas Scott.

ASSISTANT: Thank you for opting us, we will try to serve you for the next time.

USER: Thank you for your service.