You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I'm Emma King, planning to visit Detroit to meet my friend. Can you please book me a ticket from LAS to DTW?

ASSISTANT: May I know your journey dates please?

USER: My preferable journey dates are from 11/14 to 11/16.

ASSISTANT: Please wait a moment.

USER: Sure, take your own time.

ASSISTANT: Emma, no flights are there as per your request.

USER: Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.

ASSISTANT: Thank you for choosing us.