You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am planning to celebrate the Flowers Festival in DTW, so please help me in booking a flight ticket from ATL.

ASSISTANT: Let me know your travelling dates.

USER: My journey dates are May 11 to May 13.

ASSISTANT: Do you have any preference?

USER: I need a direct flight.

ASSISTANT: Can I know your name?

USER: I am Anthony White.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: No issue, thank you.

ASSISTANT: Thank you.