You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: My name is Steven Martin. I would like to book a ticket to Las Vegas for a business meet.

ASSISTANT: Sure, on what dates are you willing to travel?

USER: Well my preferred dates are Jan 13 and Jan 15.

ASSISTANT: Kindly share your airport codes.

USER: My airport codes are AUS and LAS.

ASSISTANT: Do you need a lay by?

USER: Sure, I want a lay bay.

ASSISTANT: Ok, let me check what flights are available for you.

USER: Also I would prefer economy  class ans boarding in the eveining.

ASSISTANT: Thank you for providing your essentials, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: No Issue, thank you for your time and information.

ASSISTANT: Thank you for reaching us.