You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need buy a plane ticket from LAS to SFO. Can you do that for me?

ASSISTANT: Sure, please share your journey dates?

USER: I will leave on Jan 21 and return on Jan 23.

ASSISTANT: Do you have any specifications?

USER: Yes, I need 1 lay over within my route.

ASSISTANT: Is there any class preferences?

USER: Any class is fine for me.

ASSISTANT: May I know your good name?

USER: I am Raymond Moore.

ASSISTANT: We found a flight in Hawaiian airlines, flight number is 1022 with single connection and price is 100 economy class. Shall I proceed?

USER: Fine, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us.