You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Virginia Campbell.

ASSISTANT: How may I help you?

USER: Can you please help me in booking my flight ticket from LAX to DTW?

ASSISTANT: May I know your travel dates?

USER: My travelling dates are 09/22 and 09/24. Please search for direct flight.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Ok, fine thank you for checking.

ASSISTANT: Most welcome.