You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carolyn Collins.

ASSISTANT: Collins, how can I assist you?

USER: I have to attend a Music Concert at Las Vegas, could you please help me with booking a flight ticket?

ASSISTANT: Sure, please share your origin and destination airport codes.

USER: My nearest source airport code is DTW and destination airport code is LAS.

ASSISTANT: May I know your itinerary dates?

USER: I would like to take off on 03/16 and return on 03/18.

ASSISTANT: Please give me a minute to check for a best flight on your route.

USER: Sure, take your time.

ASSISTANT: Sorry, no flight is found.

USER: That's ok, I will find an another alternate way to complete my trip.

ASSISTANT: Thank you for contacting us.

USER: Thank you for the information.