You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I want to have a flight ticket reservation from AUS to LAS. Can you please help me to book a flight ticket under my name Steven Garcia?

ASSISTANT: I will help you out.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: Sure, my travelling dates are 04/24 and 04/26.

ASSISTANT: Sorry, there are no flights found.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Thank you for choosing us.