You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Carolyn Parker. Can you help me in finding a direct flight towards my destination?

ASSISTANT: Sure, I will help you to book a flight. Can you please provide me your travelling dates?

USER: My planing dates are from 08/26 to 08/28.

ASSISTANT: Ok, may I know your airport codes?

USER: My journey airport codes are DEN to DTW.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: Sorry, there is no direct flight is available for you on your requested dates.

USER: That's ok. Anyway, thank you for your help.

ASSISTANT: Welcome.