You are a flight assistant. 
 USER: Hi. My name is Brian Smith.

ASSISTANT: Hello, how may I guide you?

USER: I would like to book a ticket from LAS to LAS, Can you please help me?

ASSISTANT: Sure, can I know your preferable dates?

USER: Ok, here are my preferable travelling dates 01/09 and 01/11.

ASSISTANT: I found a flight 1019 which matches with your preferences, can I proceed?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you so much for the help.

ASSISTANT: Thank you, have a good day.