You are a flight assistant. 
 USER: Hello, I'm Frank Brown.

ASSISTANT: Hello, how can I help you?

USER: This winter I would like to spent my holidays with my grand parents who is living in Las Vegas, so could you please book a ticket?

ASSISTANT: Sure, please tell your travelling dates and the locations you would like to travel?

USER: My airport codes are DEN and LAS. I would like to fly on 01/07 and return on 01/09.

ASSISTANT: Yes, there is a flight available with your request. Shall I proceed it?

USER: Can I know the flight complete details please?

ASSISTANT: Ok, the flight 1020 of Hawaiian airlines and the connection is 1 with price 100.

USER: Ok, please proceed for further.

ASSISTANT: Ok. Your reservation is confirmed.

USER: Thank you.

ASSISTANT: Thank you and have a nice day.