You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Jonathan Johnson here.

ASSISTANT: How can I help you today?

USER: Please help me out in booking the ticket from AUS to OAK.

ASSISTANT: Sure, I am here to help you in booking process. Can you please share your travel dates?

USER: My trip dates will be Sept 3 to Sept 5.

ASSISTANT: Do you have any specification?

USER: No.

ASSISTANT: Flight 1025 in Delta airlines is available for you with 1 stopover and it costs you 100. Can I proceed?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a safe journey.