You are a flight assistant. 
 USER: Hi, I am Debra Clark.

ASSISTANT: Hello, How can I support you today?

USER: I have an invitation for film festival at Orlando, please book me a direct flight.

ASSISTANT: Sure, I will help you with that. Can you please provide your take off and landing airport codes?

USER: I want to fly from DC- IAD to FL- MCO.

ASSISTANT: What are your planned trip dates?

USER: My travelling dates are from 01/06 to 01/08.

ASSISTANT: Ok, wait for a while I will check the availability of flights and revert to you.

USER: ok.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us, Have a great day!.