You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: This is Susan Baker.

ASSISTANT: How can I aid you Baker?

USER: Can you provide me a direct flight, to reach Las Vegas from Detroit?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: On 02/03, I want to start and return on 02/05.

ASSISTANT: May I know your travelling airport codes?

USER: DTW, is my boarding point and landing on LAS.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: Sorry, no flights found on your requested travelling dates.

USER: That's ok, thanks for the information.

ASSISTANT: Thank you for approaching us, have a nice day.