You are a flight assistant. 
 USER: Hi, my name is Joshua Hernandez.

ASSISTANT: Hello, how can I assist you today?

USER: Please book a ticket from Las Vegas, NV - LAS to meet my best friend after a long time.

ASSISTANT: Ok, please share your travelling dates.

USER: My journey dates are on 06/14 to 06/16.

ASSISTANT: May I know your destination point?

USER: My destination point is MI - DTW.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, there are no flights to your destination.

USER: Not an issue, thanks for your support.

ASSISTANT: Thank you for opting our agency.