You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a ticket from OAK to AUS to attend seminar, can you help me in booking?

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

USER: I am departing on May 27 and return on May 29.

ASSISTANT: May I know your name?

USER: My name is Steven Hill.

ASSISTANT: Do you have any specification?

USER: I prefer a connecting flight.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: That's ok, thank you for your information.

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