You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am willing to book a flight from AUS to reach LAS, would you please help me in booking a flight?

ASSISTANT: Sure, may I know your trip dates?

USER: My planned dates are on Sept 10th to 12th.

ASSISTANT: Can you share your good name?

USER: Sure, my name is Stephen Perez.

ASSISTANT: Is there any connection limit?

USER: I am okay with any connection.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry, there is no flight service on your required dates.

USER: No issues, thank you.

ASSISTANT: Thank you for contacting us.