You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need to book a flight ticket from OAK to AUS. Please help me in that.

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My travel dates are from Sept, 21 to Sept, 23.

ASSISTANT: Do you have any other preferences?

USER: I need a single connecting flight.

ASSISTANT: I have found an economy class ticket with a price of 100 and 1 connection.

USER: Please proceed for booking.

ASSISTANT: Can I know your name for booking?

USER: Patrick Hall.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for contacting us.