You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I help you?

USER: Debra Hill here. Please book my ticket in a direct flight from MCO to LAS.

ASSISTANT: Please mention your travelling dates?

USER: My itinerary dates are 08/20 and 08/22.

ASSISTANT: There are no direct flight found.

USER: It's ok, thank you.

ASSISTANT: Thanks.