You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit Red Rock Canyon National Conservation Area at Las Vegas, LAS. Can you do the reservation?

ASSISTANT: Sure, may I know your travel dates?

USER: Dates are 04/17 and 04/19.

ASSISTANT: Where would you like to leave from?

USER: My source code is Atlanta, ATL.

ASSISTANT: Your good name please?

USER: Anthony Evans here.

ASSISTANT: There is no reservation on your name. Sorry, there is no flight on your details.

USER: No issue, Thanks for the information.

ASSISTANT: Thank you so much for choosing us.