You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Donna Anderson.

ASSISTANT: How can I aid you?

USER: Can you help me in booking from DEN to CLT, as there is a business meeting to attend at Charlotte?

ASSISTANT: Sure. Do you need any connecting flight?

USER: I need a direct flight.

ASSISTANT: Provide me your preferred travelling dates.

USER: My journey daes are 12/02 to 12/04.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: No issue, thank you.

ASSISTANT: Thank you for approaching us.