You are a flight assistant. 
 USER: Hi. I am Justin Williams.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to exhibit my arts in art festival at Los Angeles. Can you help me in my booking?

ASSISTANT: Sure, can you please provide your journey dates?

USER: I will start my journey on 12/24. I will return on 12/26.

ASSISTANT: Kindly mention your airport locations?

USER: My source airport code is Detroit, MI - DTW. My destination airport code is CA - LAX.

ASSISTANT: Do you have any other restrictions to be met?

USER: I need a direct flight in my journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no flights found on that day.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for availing us.