You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Pamela Martinez. I am planning to visit the Zilker Park in Austin, so please help me in booking a flight ticket from Oakland.

ASSISTANT: Sure, may I know your boarding and landing airport codes?

USER: My source is Oakland, CA - OAK and destination code is TX - AUS.

ASSISTANT: When are you willing to travel?

USER: I want to fly on 10/20 and return on 10/22.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a connecting flight with fare of 100 in Hawaiian airline. Shall I proceed for booking?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been reserved. Thanks for approaching us.