You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Steven Miller from Vegas, Nevada.

ASSISTANT: How may I assist you?

USER: I would like to spend my weekend with my friends at Seattle. Can you help me in booking a ticket from LAS to SEA?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: My preferred journey dates are 11/05 and 11/07.

ASSISTANT: Steven, no flights has been found on your journey dates.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you for choosing us.