You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Betty Perez.

ASSISTANT: How can I help you today?

USER: Can you please reserve a ticket in a single connecting flight from AUS to OAK?

ASSISTANT: Sure Perez, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: Sure, I would like to on 09/21 and return back on 09/23.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day. Thank you for choosing us.

USER: Welcome.