You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be of your help?

USER: I would like to visit Red Rock Canyon National Conservation Area at Las Vegas, LAS. Can you help me to book a ticket from SEA?

ASSISTANT: Sure, may I know your scheduled dates of travel?

USER: Dates are 05/24 and 05/26.

ASSISTANT: Do you need a connection in between your journey?

USER: I need halt in my journey.

ASSISTANT: Let me know your name please.

USER: Dennis Johnson here.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: There are no flights found according to your requirements.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for availing us.