You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: Please book a ticket from Austin, TX-AUS to San Francisco, CA-SFO for attending a sports event.

ASSISTANT: Sure, we are happy to help you. Can I have your name please?

USER: My name is Dennis Roberts.

ASSISTANT: May I know on what dates would you like to travel?

USER: Travel dates are from 01/01 to 01/03.

ASSISTANT: Do you need a halt in between your journey?

USER: Please provide a halt.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Thank you for being on hold, we are unable to provide flights on your schedule dates.

USER: Thank you.

ASSISTANT: Thank you for selecting our service.