You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me to search a flight from WA-SEA to NV-LAS?

ASSISTANT: Sure, may I know the travelling dates please?

USER: The travelling dates are 11/22 to 11/24.

ASSISTANT: May I know your name?

USER: Sure, my name is Betty Jones.

ASSISTANT: There is a flight-1021 of Hawaiian airlines, shall I proceed?

USER: Yes, proceed with my booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: Welcome.